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<strong>Science</strong> <strong>of</strong> <strong>Aphasia</strong> 5<br />

<strong>Cross</strong> <strong>Linguistic</strong> <strong>Aspects</strong> <strong>of</strong> <strong>Aphasia</strong><br />

POTSDAM<br />

SEPTEMBER 16 TH -21 ST , 2004<br />

ABSTRACTS<br />

Scientific Committee<br />

Pr<strong>of</strong>. Dr. Roelien Bastiaanse, Groningen, The Netherlands (chair)<br />

Pr<strong>of</strong>. Dr. Ria de Bleser, Potsdam, Germany (vice-chair)<br />

Pr<strong>of</strong>. Dr. David Howard, Newcastle, UK<br />

Pr<strong>of</strong>. Dr. Matti Laine, Abo, Finland<br />

Pr<strong>of</strong>. Dr. Claudio Luzzatti, Milano, Italy<br />

Pr<strong>of</strong>. Dr. David Poeppel, Maryland, U.S.A.<br />

Pr<strong>of</strong>. Dr. Riitta Salmelin, Helsinki, Finland<br />

Pr<strong>of</strong>. Dr. Cynthia K. Thompson, Evanston, U.S.A.


Applying a connectionist model to German naming data<br />

Stefanie Abel 1 , Walter Huber 1 , Gary S. Dell 2<br />

1 Neurolinguistics at the Department <strong>of</strong> Neurology, University Hospital, Aachen University <strong>of</strong> Technology<br />

(RWTH), Germany, 2 Language Production Laboratory, Beckman Institute, University <strong>of</strong> Illinois at Urbana-<br />

Champaign, USA<br />

Introduction<br />

The connectionist model <strong>of</strong> Dell and coworkers (Foygel and Dell, 2000; Dell et al. 1997) simulates<br />

normal and impaired lexical access in picture naming and thereby assesses aphasic naming disorders. The lexical<br />

access involves two steps, retrieval <strong>of</strong> the abstract lexical information (lemma) from semantics and retrieval <strong>of</strong><br />

the corresponding phonological form. There are two distinct deficit theories: The weight/decay (WD) model<br />

attributes the impairment to globally weakened activation transmission (altering connection weight parameter w)<br />

and/or to a global loss <strong>of</strong> activation (altering decay parameter d). In the semantic-phonological (SP) model, the<br />

disorder is attributed to reduced spread <strong>of</strong> activation between semantic and lexical levels (lexical-semantic<br />

weight s) and/or between lexical and phonological levels (lexical-phonological weight p). The internet program<br />

WebFit (URL: http://langprod.cogsci.uiuc.edu/cgi-bin/webfit.cgi) uses the distribution <strong>of</strong> naming error types for<br />

a patient to assign parameter values to each deficit model. As articulatory-phonetic processing is beyond the<br />

model’s scope, nonfluent aphasics were originally excluded in order to avoid speech motor deficits.<br />

The model’s network structure preserves the error opportunities <strong>of</strong> the English lexicon (originated in the<br />

neighborhoods <strong>of</strong> English words). Under the condition <strong>of</strong> random output (i.e., without lexical influences but<br />

following phonotactic rules), the model produces a proportion both <strong>of</strong> words vs. nonwords and <strong>of</strong> the various<br />

kinds <strong>of</strong> word errors similar to English error opportunities.<br />

In this abstract, we explore if the connectionist diagnosis can be applied to German speaking, fluent and<br />

nonfluent aphasic patients. Therefore, we analyze and compare characteristics <strong>of</strong> the English versus German<br />

Lexicon. We show the fitting <strong>of</strong> these patients’ naming data to both deficit models to compare goodness <strong>of</strong><br />

fitting.<br />

Methods<br />

Subjects<br />

In an ongoing therapy study, patients <strong>of</strong> the Aachen aphasia ward exhibiting post-acute or chronic aphasia<br />

and a naming disorder without a severe speech motor impairment were selected for pre-testing. Six patients<br />

exhibited a fluent aphasia (four Wernicke’s, one transcortical-sensory and one unclassifiable fluent aphasia) and<br />

three patients a nonfluent aphasia (two Broca’s and one global aphasia). Patients were tested for speech fluency<br />

(articulatory diadochokinesis). Four fluent aphasics and all three nonfluent aphasics showed a mild or moderate<br />

speech motor deficit (speech apraxia/dysarthria).<br />

Material<br />

The material consists <strong>of</strong> 160 pictures from Snodgrass & Vanderwart (1980) validated for the German<br />

language (Mottaghy, 1998).<br />

Procedure<br />

We produced random pairs <strong>of</strong> the German corpus with a two-fold goal. First, word/nonword opportunities<br />

were analyzed by exchanging phonemes. Second, opportunities for different word errors were derived by<br />

examining the linguistic relation (semantic, formal, mixed, unrelated) between words <strong>of</strong> each random pair (see<br />

Dell et al., 1997). Aphasic responses were classified according to Dell and colleagues (1997), except that<br />

obvious speech problems were ignored and correct responses included synonyms. (This was justified because<br />

Genzel et al.,1995, found higher name variability in German than in English for the Snodgrass & Vanderwart<br />

pictures). Each error pattern is analyzed by Webfit, using both deficit models (Independence SP- and WDmodels,<br />

20% mixed errors, minimize χ 2 ).<br />

RESULTS<br />

Lexicon comparison revealed that error opportunities for the German lexicon are similar to those for the<br />

English lexicon and the computer model (see Fig. 1). This holds true for both aspects: the likelihood <strong>of</strong><br />

word/nonword occurrence and <strong>of</strong> error types. As the German naming corpus entails more compounds (23%) than<br />

the English naming corpus (Philadelphia Naming Test; 9,1%), we analysed sound exchanges creating new words


in compounds separately. Word proportions for both languages were closest if these compounds were analysed<br />

as words. Therefore, analysing aphasic naming data, semantic neologism were classified as words. (For example,<br />

the semantic neologism Gummihammer (rubber hammer) in relation to target Glocke (bell) constitutes a formal<br />

error.)<br />

Fig. 1. Opportunities for words versus nonwords (left side) and different word errors (right side). As words tend to clump in<br />

phonological space, estimated nonword opportunity for computer model simulation is set to 80%. The remaining 20% word<br />

opportunity is divided among word error types.<br />

Fitting the patients' naming data to the SP-model, five patients with a fluent aphasia showed a<br />

predominantly semantic (sp but s and p less than .002<br />

apart). Using the WD-model, all patients with a semantic lesion and the patient with a mixed phonological lesion<br />

in the SP-model had a decay lesion (w>.055). The remaining two patients with a predominantly phonological<br />

lesion revealed a weight lesion (w


Deficit-specific speech therapy: er-fMRI evidence from phonologicallycued<br />

training in an anomic patient<br />

Jubin ABUTALEBI * °, Paolo VITALI * ^, Marco TETTAMANTI *, Daniela PERANI<br />

*, & Stefano F. CAPPA *<br />

* Centre for Cognitive Neuroscience, University Vita-Salute San Raffaele and HSR,<br />

Milan, Italy<br />

° Interdisciplinary Center for Cognitive Studies, University <strong>of</strong> Potsdam, Germany<br />

^ Institut Universitaire de Gériatrie de Montréal, Université de Montréal, Québec, Canada<br />

Clinical neuroscientists have long known that some recovery <strong>of</strong> function is<br />

possible after injury to the brain but the nature and exact mechanisms <strong>of</strong> language<br />

recovery after brain damage are still controversial although a strong relationship between<br />

neuroplasticity and recovery is postulated (Blomert, 1998). Indeed, when stroke patients<br />

regain some <strong>of</strong> their language abilities, their behavioral improvements may result from<br />

either <strong>of</strong> two mechanisms (Cappa, 2000). Recovery may be achieved by adopting novel<br />

cognitive strategies for function performing (i.e., recruitment <strong>of</strong> uninjured cerebral areas<br />

which are usually not necessary for the lost function in the intact brain). On the other<br />

hand, recovery may be achieved because <strong>of</strong> the involvement <strong>of</strong> homotopic (i.e.<br />

homologous) areas <strong>of</strong> the controlateral hemisphere that may have compensatory function.<br />

However, how speech therapy may directly influence this cerebral re-organization is a<br />

further matter <strong>of</strong> debate.<br />

The repeatability <strong>of</strong> fMRI over time allows one to investigate how patterns <strong>of</strong> cerebral<br />

activity may change during the course <strong>of</strong> recovery and to observe consequently the<br />

influence <strong>of</strong> treatment on brain functioning.<br />

In the present study we investigated the effects <strong>of</strong> anomia-specific speech therapy<br />

on cerebral re-organization in an anomic patient, G.R.. Using event-related functional<br />

Magnetic Resonance Imaging (er-fMRI), we scanned patient G.R. twice, before and after<br />

specific speech therapy for anomia (phonological cued naming training). The rationale<br />

for concentrating on phonologically cued naming training was inferred by the fact that<br />

G.R. was able to name when cued with the beginning syllable.<br />

A set <strong>of</strong> pictures that G.R. could not spontaneously name was selected for intensive<br />

speech therapy. After acquisition <strong>of</strong> the first er-fMRI session, training was intensively<br />

administered on a daily basis by a speech-pathologist, until a 50% correct naming<br />

performance (at least) on the training picture set was achieved. During the pre- and posttraining<br />

er-fMRI acquisition G.R. had to overtly name visually presented pictures <strong>of</strong> the<br />

trained set and <strong>of</strong> an un-trained control set. Furthemore, fMRI data were also collected<br />

during a third condition in which G.R. was phonologically cued during naming.


The er-fMRI results during non-trained spontaneous successful naming (A), successful<br />

training-induced naming (B) and pre-training phonologically cued-naming (C) are<br />

displayed in figure1.<br />

In G.R. spontaneous (non-trained) naming was mainly associated with activations in<br />

the non-dominant hemisphere (right inferior and middle frontal gyrus and right insula).<br />

Successful training-induced naming resulted, at the brain level, in a significant shift to<br />

left hemisperic perilesional areas (left inferior frontal gyrus and left supramarginal<br />

gyrus). However, also the right homologue <strong>of</strong> Broca’s area was found to be activated<br />

probably due to the fact that his original brain lesion extended into the left Broca'a<br />

proper. Pre-training phonologically cued naming was mainly associated with significant<br />

brain activity in left-sided perilesional areas (left middle frontal gyrus, left supramarginal<br />

gyrus, left posterior parietal cortex).<br />

This present finding suggests that perilesional areas <strong>of</strong> the dominant hemisphere may<br />

be crucial for effective recovery. In the absence <strong>of</strong> the left Broca's area, successful<br />

naming may be mediated by its right homologue area. It is also woth underlining that<br />

anomia-specific rehabilitation, based on phonological cueing, was associated with<br />

activation in brain areas classically ascribed to phonological processing, phonological<br />

working memory and lexical retrieval (left inferior frontal gyrus and supramarginal<br />

gyrus); such an activation pattern could express a facilitated access and retrieval <strong>of</strong><br />

lexical items from the mental lexicon by enhanced and trained sub lexical, phonological<br />

strategies, as demonstrated by the brain activity pattern during the phonologically cued<br />

naming condition.<br />

Figure 1.


Neuroanatomical correlates <strong>of</strong> selective impairments <strong>of</strong> nouns and verbs<br />

Silvia Aggujaro 1 , Davide Crepaldi 1 , Caterina Pistarini 2 , Mariangela Taricco 3<br />

and Claudio Luzzatti 1<br />

1 Department <strong>of</strong> Psychology, University <strong>of</strong> Milano-Bicocca<br />

2 S. Maugeri Foundation, Montescano Medical Center, Pavia<br />

3 Rehabilitation Unit, G. Salvini General Hospital, Passirana, Milano<br />

INTRODUCTION<br />

Theoretical linguistics suggests that the representation <strong>of</strong> verbs (V) and nouns (N) is independent, reflecting the<br />

functional difference <strong>of</strong> these word classes in syntax. Observation <strong>of</strong> brain damaged patients demonstrates the<br />

existence <strong>of</strong> double dissociations with disproportionate impairments <strong>of</strong> either Vs or Ns (e.g. Berndt et al. 1997).<br />

However, the mechanisms underlying N-V dissociations are not yet well defined; some authors have considered<br />

them to be pro<strong>of</strong> that the mental organization <strong>of</strong> Ns and Vs is separate, while others (Bird, Howard and Franklin,<br />

2000), maintain that Ns and Vs do not dissociate on the basis <strong>of</strong> a true grammatical class effect, but on that <strong>of</strong> an<br />

artifact due to the different kind <strong>of</strong> underlying semantic knowledge.<br />

The primary aim <strong>of</strong> the present study was the identification <strong>of</strong> the anatomical loci <strong>of</strong> the lesions causing<br />

selective impairments <strong>of</strong> Vs and Ns. In addition, an attempt was made to disentangle the effect <strong>of</strong> imageability<br />

from a possible effect <strong>of</strong> the degree <strong>of</strong> motor functional mental images underlying verbs (actionality), and,<br />

finally, to analyze the relation <strong>of</strong> these variables and the site <strong>of</strong> the underlying cerebral lesion.<br />

MATERIALS AND METHODS<br />

Subjects<br />

Fifteen aphasic patients suffering from disproportionate impairment <strong>of</strong> verbs (DIV) and five patients suffering<br />

from disproportionate impairment <strong>of</strong> nouns (DIN) participated in the study.<br />

N-V dissociations were identified by evaluating naming abilities <strong>of</strong> Ns and Vs through a picture-naming task.<br />

Disproportionate impairment on either Vs or Ns was identified by a logistic regression analysis. The majority <strong>of</strong><br />

the DIN cases also showed a word frequency effect; all 15 DIV cases showed an imageability effect.<br />

Task<br />

The picture naming task used to test the naming ability <strong>of</strong> the participants is composed <strong>of</strong> 30 pictures <strong>of</strong> objects<br />

(15 natural objects and 15 artifacts) and 40 pictures <strong>of</strong> actions (<strong>of</strong> which 12 verbs with low degree <strong>of</strong> actionality,<br />

14 with an intermediate and 14 with a high degree <strong>of</strong> actionality).<br />

The major lexical-semantic variables (oral word frequency, age <strong>of</strong> acquisition, familiarity with the underlying<br />

concepts and imageability) were included in the experimental design.<br />

Imageability and actionality ratings<br />

Each <strong>of</strong> the items included in the naming task was scored by a group <strong>of</strong> 20 adult controls for visual imageability<br />

using a 1-to-7 rating scale (Luzzatti et al. 2002).<br />

The degree <strong>of</strong> fine motor planning <strong>of</strong> hand movements (actionality) underlying the action denoted by each <strong>of</strong> the<br />

verbs elicited by the naming task was tested by a group <strong>of</strong> 25 healthy undergraduate students that estimated the<br />

degree <strong>of</strong> actionality using a 1-to-7 scale.<br />

Mapping <strong>of</strong> brain lesions from NMR & CT scan pictures<br />

Lesions were reconstructed and mapped onto a lateral template <strong>of</strong> the brain.<br />

RESULTS<br />

Localization <strong>of</strong> the brain lesions causing DIN and DIV<br />

In a first part <strong>of</strong> the study the areas <strong>of</strong> the brain involved in the storage <strong>of</strong> lexical representations <strong>of</strong> Vs and Ns<br />

were investigated by localizing the brain lesions causing disproportionate impairment to the retrieval <strong>of</strong> these<br />

lexical categories.<br />

In the majority <strong>of</strong> the DIN patients, the lesion involved the medial part <strong>of</strong> the middle and inferior left temporal<br />

gyri (Broadmann area (BA) 21, 20, 37). On the contrary, the lesions found in DIV patients clustered in two major<br />

subsets: in the first group <strong>of</strong> patients, the focal brain damage involved the posterior part <strong>of</strong> left temporal lobe and<br />

the inferior parietal gyrus (BA 21 posterior, 37 superior, 39, 40); in the second group, the lesion involved the left<br />

frontal, temporal and parietal perisylvian territory (BA 44, 40, 22, 41, 42), causing complete destruction <strong>of</strong> the


left hemisphere language areas. In a third group the lesion involved the basal ganglia. Isolated frontal lesions<br />

were not present in any <strong>of</strong> the dissociated cases.<br />

Disproportionate N- or V-impairment and imageability<br />

This analysis addressed the issue whether the verb naming deficit is caused by damage to semantic features<br />

underlying lexical entries, and whether noun superiority emerges exclusively from an increased sensibility to<br />

imageability.<br />

None <strong>of</strong> the five DIN patients has a selective naming impairment <strong>of</strong> natural objects, while none <strong>of</strong> the fifteen<br />

DIV patients had selective impairment <strong>of</strong> artifacts.<br />

The grammatical class effect remained in two patients after bivariate regression analysis (grammatical class by<br />

imageability), which would seem to indicate that, at least in some cases, DIV may be due to true lexical damage.<br />

Disentangling imageability from actionality<br />

This analysis investigated whether, with respect to Vs, the imageability effect depends on the degree <strong>of</strong><br />

underlying motor functional mental images (actionality).<br />

Results show a high degree <strong>of</strong> independence between visual imageability and actionality ratings.<br />

Is the TP area which causes DIV an interface area for action verbs or a critical area for all types <strong>of</strong> verbs?<br />

DIV is caused by a TP lesion in most fluent aphasic patients. This analysis tested whether this region represents<br />

a locus <strong>of</strong> interface between the motor and lexical representation <strong>of</strong> action verbs or whether it is a functional unit<br />

specifically involved in processing verbs.<br />

Two <strong>of</strong> the four patients with posterior temporal and inferior parietal lesions could not name any <strong>of</strong> the low or<br />

high actionality verbs. The remaining two patients showed identical damage to both the high- and lowactionality<br />

verbs. There was no significant difference between the number <strong>of</strong> correct responses produced for the<br />

two verb sets; in fact, there is a trend in the opposite direction, as low-actionality verbs (LAV) are slightly more<br />

impaired than high-actionality verbs (HAV).<br />

DISCUSSION<br />

The brain areas involved in the lexical retrieval <strong>of</strong> verbs and nouns were investigated in a series <strong>of</strong> aphasic<br />

patients by localizing the lesions causing disproportionate impairment to the retrieval <strong>of</strong> either <strong>of</strong> these lexical<br />

categories. Impaired naming <strong>of</strong> objects mostly followed damage to the middle and inferior temporal lobe;<br />

impaired naming <strong>of</strong> actions <strong>of</strong>ten followed damage to the posterior temporal and inferior parietal lobes. Isolated<br />

pre-motor, pre-frontal lesions were not present in any <strong>of</strong> the dissociated DIV cases.<br />

The data collected with this study are in conflict with the results obtained from functional neuroimaging studies<br />

that have reported a specific activation to the frontal lobe in retrieving verbs, and are in favor <strong>of</strong> a critical role <strong>of</strong><br />

more posterior temporo-parietal areas.<br />

Bird et. al’s predictions based on the imageability assumption were not confirmed. None <strong>of</strong> the 5 DIN patients<br />

suffered from a disproportionate naming deficit <strong>of</strong> natural objects and none <strong>of</strong> the 15 DIV patients suffered from<br />

a disproportionate naming deficit <strong>of</strong> artifacts. The two patients in which imageability did not partial out the<br />

grammatical class effect seem to dissociate because <strong>of</strong> a true lexical damage <strong>of</strong> verbs.<br />

The degree <strong>of</strong> visual imageability and <strong>of</strong> actionality underlying verbs are almost independent.<br />

Naming <strong>of</strong> verbs with high and low actionality ratings is equally impaired in the four patients with TP lesion.<br />

The TP area would therefore appear to play a critical role in the retrieval <strong>of</strong> verbs, irrespective <strong>of</strong> their degree <strong>of</strong><br />

actionality.<br />

REFERENCES<br />

Berndt, R.S., Mitchum, C.C., Haendiges, A.N., Sandson, J. (1997). Verb retrieval in aphasia. 1. Characterizing<br />

single word impairments. Brain and Language, 56, 68-106.<br />

Bird, H., Howard, D., Franklyn, S. (2000). Why is a verb like an inanimate object?: Grammatical category and<br />

semantic category deficits. Brain and Language, 72, 246-309.<br />

Luzzatti, C., Raggi, R., Zonca, G., Pistarini, C., Contardi, A., Pinna, G.D. (2002). Verb-Noun Double<br />

Dissociation in Aphasic Lexical Impairments: The Role <strong>of</strong> Word Frequency and Imageability. Brain and<br />

Language, 81, 432-444.


Spelling impairment in Italian dyslexic children during the early phases <strong>of</strong> literacy acquisition<br />

Paola Angelelli 1,2 , Alessandra Notarnicola 1 , Anna Judica 2 , Donatella Spinelli 2, 3 , Pierluigi Zoccolotti 2, 4 and<br />

Claudio Luzzatti 5<br />

1 2 3<br />

Dipartimento di Psicologia, Università di Bari; Centro Ricerche, IRCCS Fondazione Santa Lucia, Roma;<br />

Istituto Universitario Scienze Motorie, Roma; 4 Dipartimento di Psicologia, Università di Roma “La Sapienza”;<br />

5<br />

Dipartimento di Psicologia, Università di Milano-Bicocca<br />

Background<br />

Very few studies have documented developmental spelling disorders in languages with shallow orthography. In a<br />

recent study on spelling deficit in Italian dyslexic children (Angelelli et al., 2004), a predominance <strong>of</strong> surface<br />

dysgraphia was found (i.e.phonologically plausible spelling errors on words with unpredictable transcription, and<br />

much better performance on regular words and nonwords). Moreover, the comparison <strong>of</strong> the reading and spelling<br />

performance showed a fully coherent pattern <strong>of</strong> impairment, with most children suffering from surface dyslexia<br />

and surface dysgraphia.<br />

Both theoretical work and experimental data (see Tressoldi et al., 1996 for Italian) suggest a later acquisition <strong>of</strong><br />

the lexical route with respect to the sub-word-level one. Consequently, the phenomenology <strong>of</strong> developmental<br />

dysgraphia might assume different features at different ages. In particular, we assume that, in the early phase <strong>of</strong><br />

spelling acquisition, developmental dysgraphia may be characterized by delayed acquisition and fragility <strong>of</strong> the<br />

sub-word level routine, together with much more severe and long-lasting deficit <strong>of</strong> the orthographic lexical<br />

acquisition.<br />

Aim <strong>of</strong> this study is the description <strong>of</strong> the writing impairment <strong>of</strong> dyslexic children during the early phases <strong>of</strong><br />

literacy acquisition. To the extent that a prevalent but inefficient use <strong>of</strong> the sub-word-level routine characterizes<br />

the initial phases <strong>of</strong> writing acquisition, we predict, in young subjects, a spelling performance reflecting<br />

inefficient use <strong>of</strong> both the sub-lexical and lexical routes (i.e, the presence <strong>of</strong> a general impairment in all tasks<br />

with distributed rate <strong>of</strong> phonologically plausible and phoneme-to-grapheme conversion errors). In order to test<br />

the hypothesis <strong>of</strong> a progressive evolution to a more selective damage <strong>of</strong> the lexical route (surface dysgraphia),<br />

we studied the writing performance in a further group <strong>of</strong> dyslexic children attending the 5 th grade and compared<br />

their spelling performance to that <strong>of</strong> both age-matched controls and 3 rd grade dyslexic children.<br />

Methods<br />

Twenty-one dyslexic children were studied: 13 attending the 3 rd grade and 8 attending the 5 th grade. Writing was<br />

investigated by means <strong>of</strong> a spelling test that included regular words with one-sound-to-one-letter<br />

correspondence, regular words requiring syllabic conversion rules, words with unpredictable transcription. The<br />

spelling task included nonwords in order to examine the efficiency <strong>of</strong> the sublexical route. The dyslexics’<br />

spelling performance was compared to that <strong>of</strong> two groups <strong>of</strong> age-matched normal readers: 53 subjects attending<br />

the 3 rd grade and 50 attending the 5 th grade.<br />

Results<br />

The 3 rd grade dyslexic participants performed poorly, with respect to the age-matched control sample, in all<br />

sections <strong>of</strong> the spelling test regardless <strong>of</strong> orthographic regularity (p


On the contrary, control subjects showed significant reduction <strong>of</strong> both phonologically plausible and syllabic<br />

conversion errors with age (p


How autonomous is orthographic encoding? The role <strong>of</strong> syntax<br />

Tobias Bormann & Gerhard Blanken<br />

Psycholinguistik, University <strong>of</strong> Erfurt<br />

Introduction<br />

Based on detailed studies <strong>of</strong> patients, it has been suggested that written production may occur independently <strong>of</strong><br />

phonological processes. Firstly, patients have been observed with preserved written naming despite severe oral<br />

naming difficulties (e.g., Blanken, 1990; Bub & Kertesz, 1982; Hier & Mohr, 1977). Secondly, patients have<br />

been reported who make different semantic errors in subsequent oral and written naming tasks (Miceli et al.,<br />

1997, 1999; Rapp et al., 1997). From this observation <strong>of</strong> superior written naming <strong>of</strong> single words, the idea <strong>of</strong><br />

autonomous orthographic production processes has been generalized to the production <strong>of</strong> phrases and sentences<br />

(e.g., Caramazza, 1997).<br />

A review <strong>of</strong> the literature, however, demonstrates that this strong concept <strong>of</strong> orthographic autonomy receives<br />

weak support at best. Only two cases have been reported with better preserved written production <strong>of</strong> phrases and<br />

sentences. The majority <strong>of</strong> patients with superior written naming hardly demonstrate any preserved syntax in the<br />

written modality. Moreover, EB (Levine et al., 1982), who has been claimed to have lost all inner phonology and<br />

still be able to write sentences, is now considered “severly dysarthric” (Caplan & Waters, 1995, p. 192). The<br />

other patient, GG (Miceli et al., 1983), was tested on a very limited set <strong>of</strong> items only, and few details are<br />

reported.<br />

Patient Background<br />

We will present data from a patient with superior written naming: AB, a former journalist born 1958, suffered<br />

from a CVA and presented with fluent aphasic speech and very mild signs <strong>of</strong> apraxia <strong>of</strong> speech. His written<br />

naming was much better than his oral naming (55/60 versus 30/60 correct). He was almost completely unable to<br />

write nonwords to dictation but did not show semantic errors or particular problems with verbs and function<br />

words. In writing as in speaking, he named actions as well as objects, and correctly wrote 25 <strong>of</strong> 30 function<br />

words to dictation. AB thus did not suffer from deep agraphia.<br />

Methods and Results<br />

AB was tested on four tasks <strong>of</strong> phrase and sentence production: description <strong>of</strong> the Cookie theft-picture,<br />

production <strong>of</strong> sentences, noun phrases and idioms. For the Cookie Theft-picture, AB’s oral production was<br />

paragrammatic: a total <strong>of</strong> 267 words include all syntactic categories <strong>of</strong> words and numerous complete sentences.<br />

A high rate <strong>of</strong> phrases were correct, verbs appeared in second position in main clauses and sentence final<br />

position in sub-clauses. In contrast, his written production was limited to 13 nouns lacking words from all other<br />

syntactic categories.<br />

In a sentence production task, AB produced 8 grammatically correct sentences for 10 pictures in speaking. In<br />

writing, he seemed to copy his previous oral response. Nevertheless, he produced only two correct sentences<br />

which bore great similarities with his oral response.<br />

In a task <strong>of</strong> naming a picture with the word’s determiner, AB chose the wrong determiner for six words. In a<br />

subsequent written response, he used the wrong determiner in five <strong>of</strong> these instances. Thus, he again seemed to<br />

copy his previous oral response instead <strong>of</strong> writing independently.<br />

Finally, AB was dictated idioms to write. He was unable to do so writing only nouns although he acknowledged<br />

that he knew these idioms.<br />

Discussion<br />

In neither task did AB show better results in the written production at the level <strong>of</strong> phrases and sentences. Instead,<br />

whenever possible, AB seemed to copy his oral response. This is unexpected if we assume complete<br />

independence <strong>of</strong> orthographic production processes from phonology. AB showed superior written to oral lexical<br />

access and used a pencil in his spontaneous communication frequently. Written superiority was, however,<br />

limited to concrete nouns. His written production was extremely poor in syntactic organization in contrast to his<br />

paragrammatic oral output. This fits with previous reports <strong>of</strong> patients with preserved written naming.<br />

Thus we suggest that the notion <strong>of</strong> completely autonomous orthographic processes is premature and not<br />

supported by the available data. Instead, we will claim that syntactic processes as employed in writing sentences<br />

may depend on intact phonological output processes and that written autonomy may be restricted to single word<br />

production, an idea advanced earlier by Bub and Kertesz (1982; cf. Margolin, 1984; Tainturier & Rapp, 2000).


Pronoun-antecedent dependencies in Broca’s aphasia:<br />

Evidence for delayed syntactic structure building<br />

Petra Burkhardt, Esther Ruigendijk, Sergey Avrutin, & Maria M. Piñango<br />

Yale University, UIL/OTS Utrecht University<br />

We present a study investigating the implementation <strong>of</strong> pronoun-antecedent relations in Dutch Broca’s aphasia<br />

patients during online sentence comprehension. Two main findings are reported: i) Broca’s aphasia patients are<br />

capable <strong>of</strong> forming pronoun-antecedent dependencies and ii) they successfully build syntactic structure, but in a<br />

delayed manner.<br />

Pronouns (her, him) are referentially dependent and must establish a link with another entity (their antecedent) to<br />

be fully interpretable. It is proposed that this link is established at the level <strong>of</strong> discourse. One model that captures<br />

the formation and maintenance <strong>of</strong> discourse entities and the establishment <strong>of</strong> pronoun-antecedent dependencies<br />

is the Syntax Discourse Model (Avrutin,1999; Burkhardt,2004). Within this model, two levels <strong>of</strong> representation<br />

are involved in pronoun interpretation: syntax and discourse. The syntactic structure is built, and the presence <strong>of</strong><br />

a Determiner-node triggers the creation <strong>of</strong> an information unit in discourse. A pronoun projects a referentially<br />

deficient discourse unit and must hence form a dependency with its antecedent to receive referential content.<br />

Crucially, during comprehension, syntactic structure must be fully formed for a discourse referent to be<br />

introduced.<br />

Avrutin (2004) suggests that, in principle, the language system allows for an alternative, non-syntactic way <strong>of</strong><br />

introducing discourse referents. Specifically, the conceptual structure can function as the source for discourse<br />

referents. Normally this option is highly restricted and possible only in so-called ‘special registers’ (colloquial<br />

speech, newspaper headlines) because the syntactic system provides the most economical, automatic way <strong>of</strong><br />

performing this function. However, if due to brain damage, syntactic structure building is delayed (e.g. the<br />

‘Slow-Syntax Hypothesis’ (Piñango,2002)), the alternative, non-syntactic way <strong>of</strong> introducing discourse referents<br />

may be used. This serves to explain previously reported behavior <strong>of</strong> Broca’s aphasia patients: online, they show<br />

aberrant priming for coreferential pronouns immediately after the pronoun (cf. Love et al.,1998), and <strong>of</strong>fline,<br />

they <strong>of</strong>ten allow for a reflexive interpretation <strong>of</strong> pronouns (cf. Grodzinsky et al.,1993; Piñango,2002; Ruigendijk<br />

et al., in press).<br />

The erroneous <strong>of</strong>fline performance is explained by the availability <strong>of</strong> two competing sources <strong>of</strong> interpretation:<br />

syntax-driven or extra-syntactic. The Syntax Discourse Model assumes that syntactic information must be in<br />

place for a discourse referent to be formed. However, in the presence <strong>of</strong> slow syntactic structure formation,<br />

syntactic information is not readily available to rule out incorrect antecedents and discourse referents are then<br />

introduced from an extra-syntactic source, leading to the incorrect interpretation. The online performance is<br />

explained by positing that in the absence <strong>of</strong> a timely syntactic structure, coreference information (introduced<br />

extra-syntactically) allows for an otherwise incorrect antecedent.<br />

We address the issue <strong>of</strong> slowed-down syntactic structure formation by investigating interpretation <strong>of</strong> pronouns<br />

with quantified and coreferential antecedents. These pronouns surface in the same structural position, but the<br />

nature <strong>of</strong> their antecedents yields distinct pronoun-antecedent dependencies, which has consequences for<br />

sentence processing: the availability <strong>of</strong> a coreferential antecedent like the hairdresser in (1) allows for a<br />

dependency with a uniquely identifiable individual; the availability <strong>of</strong> a quantified expression – like everyone –<br />

as antecedent (2) demands a quantified interpretation that requires access to a set:<br />

De kapperi zegt dat de klant hemi bezoekt als het buiten koud en stormachtig is.<br />

“The hairdresser says that the client visits him when it is cold and stormy outside.”<br />

Iedereeni zegt dat de klant hemi bezoekt als het buiten koud en stormachtig is.<br />

“Everyone …”<br />

We examine pronoun interpretation using the cross-modal lexical decision interference paradigm. This paradigm<br />

measures processing cost at discrete points in time as comprehension progresses. Subjects listen to a sentence<br />

and perform a lexical decision task: at a predetermined point, a letter string appears on a computer screen in front<br />

<strong>of</strong> the subjects. Subjects must decide whether or not the string represents a real word <strong>of</strong> Dutch by pressing a<br />

response button. The reaction time (RT) to this decision is measured.<br />

In a previous study (Burkhardt et al.,2003a), unimpaired Dutch college-aged subjects showed a significant<br />

increase in RT for the quantified over the coreferential condition immediately after the pronoun (*p


indicates that quantified interpretation <strong>of</strong> a pronoun in Dutch – which requires access to a set – is more costly<br />

than coreferential interpretation.<br />

Based on the Slow-Syntax Hypothesis, we predict that Broca’s aphasia patients show the same pattern<br />

(quantified>coreferential) as unimpaired subjects but in a delayed manner. We created minimal pairs as in (1) &<br />

(2) and measured interference at three positions: 400msecs before the pronoun (control position), and 100msecs<br />

and 600msecs after the pronoun. The timing <strong>of</strong> this later point follows from studies <strong>of</strong> long-distance<br />

dependencies (Love et al.,2001; Burkhardt et al.,2003b) and reflexive interpretation (Burkhardt &<br />

Piñango,2002). We hypothesize that unlike unimpaired controls, Broca's aphasia patients should not show an<br />

interference effect at 100msecs after the pronoun, but further downstream, at the point where syntactic structure<br />

is hypothesized to be formed in the Broca’s system.<br />

We tested 10 age-matched control subjects and two Broca’s patients in the three experimental positions<br />

(additional participants are currently being tested). The results obtained confirm our predictions. Both groups<br />

show no significant difference in the control position. The control subjects pattern with college-aged subjects:<br />

they show a higher RT for quantified interpretation over coreferential interpretation at 100msecs after the<br />

pronoun. In contrast, the two Broca’s patients do not show such an effect at 100msecs. However, they show an<br />

interference effect at 600msecs, where the control group does no longer show a significant difference. This<br />

indicates that syntactic structure has been integrated at this point in the Broca’s system.<br />

Table 1. Paired comparisons for mean-RTs to quantified vs. coreferential interpretation<br />

400msecs before 100msecs after 600msecs after<br />

Controls NS *p


Negative Markers and Bilingual <strong>Aphasia</strong>:<br />

Evidence from Italian and Northern Italian Dialects<br />

Paolo Chinellato<br />

University <strong>of</strong> Venice<br />

This paper deals with agrammatic production <strong>of</strong> negation in five agrammatic patients. Before the injury they<br />

spoke both Italian and a Northern Italian dialect (Northern Vicentino, Venetian). The present study describes the<br />

performance <strong>of</strong> the patients on several tasks:<br />

- delayed repetition: patients were asked to repeat a sentence with a preverbal and a postverbal negative<br />

marker in both languages:<br />

(1) It. Gianni non beve mica vino<br />

(John not drinks not wine)<br />

- sentence completion: patients were asked to complete a sentence in both languages:<br />

(2) It. Gianni vive a Londra, ma è italiano; Gianni vive a Londra ma ____ è inglese<br />

(John lived in London, but is Italian; John lives in London, but ____is English)<br />

- guided production: patient were asked to produce a sentence with at least one negative marker.<br />

- sentence anagram ordering tasks: patients were asked to order sentences with two negative markers<br />

Moreover a comparison between sentence negation and small clause negation has been investigated:<br />

(3) Non ritengo Gianni degno di fiducia<br />

(Not consider-1 st sing. John trust-worthy)<br />

(4) Ritengo [Gianni non degno di fiducia]<br />

(Consider – 1 st sing. [John not trust-worthy])<br />

In the presentation I will show that:<br />

- preverbal sentence negation (it. non /dial. no) is always omitted in both languages.<br />

- postverbal sentence negation (it. mica/ dial. mia) is always spared in both languages.<br />

- negation <strong>of</strong> small clause (it. non / dial. n�) is always spared in both languages.<br />

These results are consistent with previous studies on negation production in aphasia (Bastiaanse, Rispens & van<br />

Zonneveld (2000)) and support linguistic theories on the different status <strong>of</strong> the two negative markers: the clitic<br />

status (X°) <strong>of</strong> the preverbal negative marker (which is omitted as subject and object pronominal clitics) and the<br />

XP status <strong>of</strong> the postverbal negative markers (Pollock 1989, Belletti 1990, Zanuttini 1997, Cinque 1999 among<br />

others).<br />

Moreover, negation <strong>of</strong> the small clauses, although semantically similar, is structurally different from the sentence<br />

negation. Our data support linguistic proposals (Cardinaletti & Guasti 1993, among others) on such a different<br />

status: the latter projects a NegP higher than TP whereas the former is expressed by an AdvP.


References<br />

Bastiaanse R., Rispens J., van Zonneveld R., (2000). Verb retrieval, verb inflection and negation in agrammatic<br />

aphasia. In Bastiaanse R. & Grodzinsky J. (eds.) Grammatical disorders in aphasia, A neurolinguistic<br />

perspective. Whurr, London /Philadelphia.<br />

Belletti, A., (1990). Generalized Verb Movement. Rosemberg & Sellier, Torino.<br />

Cardinaletti, A. & Guasti, M.T. (1993). Negation in epistemic small clauses. In Probus 5: 39-61<br />

Cinque, G., (1999). Adverbs and Functional Heads. A <strong>Cross</strong>-<strong>Linguistic</strong> Perspective. Oxford University Press,<br />

New York – Oxford.<br />

Pollock, J.-Y., (1989). Verb Movement, UG, and the Structure <strong>of</strong> IP. In <strong>Linguistic</strong> Inquiry, 20, pp 365-424.<br />

Zanuttini, R. (1997). Negation and Clausal Structure. A Comparative Study <strong>of</strong> Romance Languages. Oxford<br />

University Press, New York /Oxford.


WORD ORDER AND FINITENESSIN PARKINSON’S DISEASE:<br />

A comparison with Broca’s aphasia.<br />

Katrien S.F. Colman, AZ Maria-Middelares-Sint-Jozef, Ghent, Belgium.<br />

Pr<strong>of</strong>.Dr.Roelien Bastiaanse, University <strong>of</strong> Groningen,<br />

Dept. <strong>of</strong> <strong>Linguistic</strong>s, The Netherlands.<br />

Introduction:<br />

� In addition to prominent motor symptoms, Parkinson’s disease (PD) patients exhibit affected linguistic processing<br />

(Lieberman, 2000; Lieberman, et al., 1990, 1992; Grossman, 1999; Grossman et al., 1991, 1992, 1993, 2002a, 2002b, among<br />

others)<br />

� Aim <strong>of</strong> this study: gain a better understanding <strong>of</strong> the grammatical abilities in PD.<br />

<strong>Linguistic</strong> background:<br />

� This study addresses two grammatical aspects and were studied in Dutch:<br />

1. the influence <strong>of</strong> word order on comprehension and sentence construction.<br />

2. inflection for tense and agreement in verb production.<br />

� Government and Binding theory (GB, Chomsky, 1981).<br />

� The canonical word order in Dutch is S-O-V (Koster, 1975):<br />

De jongen kust het meisje.<br />

The boy kisses the girl.<br />

Agent Theme<br />

� Non-canonical sentence structure (i.e. passive) derived by a grammatical transformation rule:<br />

Het meisjei wordt<br />

The girl is<br />

(The girl is kissed by the boy.)<br />

door de jongen ti by the boy<br />

gekust.<br />

kissed.<br />

Theme Agent<br />

� Canonical word order S-O-V and the Verb Second rule:<br />

Matrix clause without model verb or auxiliary<br />

De jongen aaiti de hond ti. The boy strokes the dog.<br />

Matrix clause with modal verb<br />

De jongen wili de hond aaien ti. The boy wants the dog (to) stroke<br />

(The boy wants to stroke the dog.)<br />

Research question:<br />

Do PD patients exhibit a selective linguistic impairment as is the case with Broca’s aphasic patients?<br />

Methods:<br />

1. Subjects:<br />

6 Dutch speaking non-demented, right handed PD patients (all on-medication), 13 Dutch speaking Broca’s aphasic<br />

patients (participated in the study <strong>of</strong> Bastiaanse and Edwards, in press), 40 Dutch speaking non-brain-damaged speakers<br />

(participated in the study <strong>of</strong> Bastiaanse and Edwards, in press).<br />

2.<br />

Results:<br />

Materials: subtests from the Dutch test battery WEZT:<br />

(1) Sentence comprehension, (2) Sentence anagrams with pictures, (3) Filling in finite verbs and infinitives<br />

In general, the subjects with Broca’s aphasia performed worse than the healthy subjects <strong>of</strong> the control group and<br />

the PD patients on each <strong>of</strong> the three tasks. The scores <strong>of</strong> the latter groups (PD versus controls) differ minimal for<br />

sentence comprehension and sentence anagrams and do not differ for filling in verbs (see table <strong>of</strong> results).<br />

Discussion:<br />

� The Broca’s aphasic subjects chose the reverse role, as would be predicted from the literature on agrammatic<br />

comprehension. Although the sentence comprehension in patients with PD was poorer than the abilities <strong>of</strong> the<br />

normal subjects, it did not approach, in terms <strong>of</strong> severity the comprehension impairment associated with Broca’s<br />

aphasia. PD patients performed equally on all <strong>of</strong> the sentence types on the comprehension task..<br />

� On the sentence anagram task, the Broca’s aphasic patients encountered more problems with passive than with<br />

active sentences, while reversibility did not play a role. The PD patients scored equally well on passives as on<br />

actives.<br />

� The Broca’s aphasic subjects and the PD patients made more semantic errors than expected in the task for filling in<br />

infinitives. However, the Broca’s aphasic patients performed as expected in the task for filling in finite verbs, they<br />

produced predominantly grammatical errors. The PD patients on the other hand, do not encounter problems with


the inflection <strong>of</strong> verbs in sentence context, but do have problems with the semantic processing <strong>of</strong> verbs in sentence<br />

context.<br />

Conclusion:<br />

� Relative to Broca’s aphasia, PD patients do not evidence a selective linguistic dysfunction. The language<br />

abnormalities in PD seem to be non-specific and are relative to controls.<br />

� A question that remains to be answered is why PD patients score better than Broca’s aphasic patients, but still<br />

perform poorer than healthy control subjects?<br />

References:<br />

Bastiaanse, R. & Edwards, S (in press) Word order and finiteness in Dutch and English<br />

Broca’s and Wernicke’s aphasia.<br />

Chomsky, N. (1981) Lectures on government and Binding. Dordrecht: Foris.<br />

Grossman, M., (1999), Sentence processing in Parkinson’s disease. Brain and Language,<br />

40, 387-413.<br />

Grossman, M., Carvell, S., Gollomp, S., Stern, M.B., Reivich, M., Morrison, D., Alavi, A., &<br />

Hurtig, H.I. (1993) Cognitive and physiological substrates <strong>of</strong> impaired sentence<br />

processing in Parkinson’s disease. Journal <strong>of</strong> Cognitive Neuroscience, 5, 480-498.<br />

Grossman, M., Carvell, S., Gollomp, S., Stern, M.B., Vernon, G., & Hurtig, H.I. (1991)<br />

Sentence comprehension and praxis deficits in Parkinson’s disease. Neurology,<br />

41, 1620-1628.<br />

Grossman, M., Carvell, S., Stern, B., Gollomp, S., & Hurtig, H. (1992) Sentence<br />

comprehension in Parkinson’s disease: The role <strong>of</strong> attention and memory. Brain and<br />

Language, 42, 347-384.<br />

Grossman M., Lee C., Morris J., Stern M.B., & Hurtig H.I. (2002b) Assesing resource<br />

demands during sentence processing in Parkinson’s disease. Brain and Language, 80,<br />

603-616.<br />

Grossman M., Zurif E., Lee C., Prather P., Kalmanson J., Stern M.B., & Hurtig H.I. (2002a)<br />

Information processing speed and sentence comprehension in parkinson’s disease.<br />

Neuropsychology, 16(2), 174-181.<br />

Koster, J. (1975) Dutch as an SVO language. <strong>Linguistic</strong> Analysis, 1, 111-136.<br />

Lieberman, M.D. (2000) Intuition: A social cognitive neuroscience approach. Psychological<br />

Bulletin, 126:1, 109-137.<br />

Lieberman, P., Friedman, J., & Feldman, L.S. (1990) Syntax comprehension in Parkinson’s<br />

disease. Journal <strong>of</strong> Nervous and Mental Disease, 178, 360-366.<br />

Lieberman, P., Kako, E., Friedman, J., Tajchman, G., Feldman, L., & Jiminez, E. (1992)<br />

Speech production, syntax comprehension, and cognitive deficits in Parkinson’s disease. Brain and Language, 43,<br />

169-189.<br />

Appendix:<br />

TABLE <strong>of</strong> results:<br />

The means and standard deviations for the Control subjects,<br />

the Broca’s aphasic and PD subjects on the three subtests.<br />

Max Cutt-<strong>of</strong>f Control group Broca’s aphasia PD patients<br />

Sentence comprehension 40 39 39,77<br />

(0,42)<br />

Sentence anagrams 20 20 20<br />

(-)<br />

Filling in verbs 20 18 19,22<br />

(0,50)<br />

29,92<br />

(8,57)<br />

13,15<br />

(5,03)<br />

13,08<br />

(3,52)<br />

Note Value is the mean, value in parenthesis is the standard deviation.<br />

37,67<br />

(1,64)<br />

19,84<br />

(0,41)<br />

18,67<br />

(0,52)


Selective Impairment <strong>of</strong> Nouns and Verbs in <strong>Aphasia</strong>: a Word Retrieval Task in a Sentence<br />

Context<br />

Davide Crepaldi 1 , Silvia Aggujaro 1 , Lisa Saskia Arduino 2 , Giusy Zonca 3 ,<br />

Graziella Ghirardi 4 , Maria Grazia Inzaghi 5 , Mariarosa Colombo 6 ,<br />

Gennaro Chierchia 1 , and Claudio Luzzatti 1<br />

1 Department <strong>of</strong> Psychology, University <strong>of</strong> Milano-Bicocca<br />

2 Department <strong>of</strong> Psychology, University <strong>of</strong> Urbino<br />

3 Maugeri Foundation, Montescano Medical Center, Pavia<br />

4 Rehabilitation Unit, G. Salvini General Hospital, Passirana<br />

5 Rehabilitation Unit, Villa Beretta, Costamasnaga<br />

6 Rehabilitation Unit, Legnano General Hospital<br />

INTRODUCTION<br />

Several authors described cases <strong>of</strong> dissociated impairment in naming nouns and verbs. There are four accounts <strong>of</strong> this dissociation:<br />

(i) patients may have purely lexical damage, which selectively affects verbs or nouns at a late stage <strong>of</strong> the linguistic processing<br />

(phonological or orthographic lexicons) (Rapp & Caramazza, 2002); (ii) the damage affects a lexical device, either at an ortographicphonological<br />

modality-specific level (the lexeme; Levelt et al., 1999) or at a unitary lexical-syntactic level (the lemma) (Berndt et al.,<br />

1997); (iii) N-V dissociation arises from semantic damage, causing increased sensibility to imageability (Bird, Howard & Franklin,<br />

2000); (iv) N-V dissociation is due to syntactic damage (Friedmann & Grodzinsky, 2000). Moreover, many other aspects <strong>of</strong> verbspecific<br />

impairment have been discussed in literature (Bastiaanse et al., 2002).<br />

To disentangle imageability and grammatical class effects, a new task was developed allowing to elicit nouns and verbs with<br />

identical imageability ratings in a sentence context. The results obtained will permit to address the following three questions: Does<br />

imageability play a role in determining N-V dissociation? If so, is imageability the unique cause <strong>of</strong> dissociation? If there is<br />

additional damage, at which level <strong>of</strong> linguistic processing does it take place?<br />

METHODS<br />

Subjects<br />

Twelve Italian aphasic patients and 11 normal controls participated in the study.<br />

Tasks<br />

Nouns and Verbs Retrieval in a Sentence Context (NVR-SC). Forty-five pairs <strong>of</strong> sentences denoting the same event, either using a<br />

noun or the corresponding verb (e.g. the evasion/to evade) were used. The first sentence was presented in complete form, while a<br />

gap was left in the second sentence, to be completed with the target word. For each pair <strong>of</strong> sentences two different conditions were<br />

employed, one triggering a verb and one triggering a noun.<br />

E.g. V→N: The prisoner was dreaming to evade<br />

The prisoner was dreaming the ………<br />

N→V: The prisoner was dreaming the evasion<br />

The prisoner was dreaming to ………<br />

It is important to observe that 27 <strong>of</strong> the 45 nouns used were morphologically derived from (and hence more complex than) verbs.<br />

The performance in the NVR-SC task was compared to that obtained on a classic picture naming task (50 nouns and 50 verbs).<br />

Statistical methods<br />

Logistic regression analysis (LRA) was applied to the pr<strong>of</strong>iles <strong>of</strong> the patients, making it possible to study the effects <strong>of</strong> the lexicalsemantic<br />

variables in univariate and multivariate linear models.<br />

RESULTS<br />

Picture naming task<br />

All patients with predominant verb deficit also have an imageability effect. In eight patients the grammatical class effect was no<br />

longer significant after introducing imageability in the statistical design (bivariate LRA).<br />

NVR-SC task<br />

Two <strong>of</strong> the verb-impaired patients in the picture naming task maintained the predominant verb deficit also in the NVR-SC task. In


eight patients, the difference between nouns and verbs was no longer significant. In two patients, a paradoxical dissociation (V>N)<br />

emerged.<br />

Group analysis: performance on nouns and verbs across naming tasks (Figure 1)<br />

Patients named actions in the NVR-SC task better than in the picture naming task (58% correct versus 37%; p


Verb second in Dutch sentence production: an fMRI study<br />

D.B. den Ouden, Y.R.M. Bastiaanse, J.M. Hoogduin, R.P. Maguire & L.A. Stowe<br />

School <strong>of</strong> Behavioural and Cognitive Neurosciences, University <strong>of</strong> Groningen<br />

As reported by Bastiaanse et al. (2002), agrammatic speakers (Broca’s aphasia) have difficulty with the<br />

production <strong>of</strong> finite verbs in main clauses, in which these finite verbs are placed in the second constituent<br />

position in the sentence. This has been argued to result from (non)canonicity <strong>of</strong> word order, or more directly<br />

from the extra cost <strong>of</strong> a movement operation which derives the main clause word order from a more basic<br />

structure. In Dutch, the base position <strong>of</strong> verbs is argued to be sentence final (Koster, 1975). This ordering is<br />

maintained at surface level for nonfinite verbs, as in (1), and for finite verbs in embedded clauses, as in (2):<br />

1) De jongen wil een boek lezen<br />

(lit.) The boy wants a book to read<br />

2) Ik zie dat de jongen een boek leest<br />

(lit.) I see that the boy a book reads<br />

For Dutch main clauses, verbs move from this base position to the second position in the sentence (Den Besten,<br />

1977), as in (3).<br />

3) De jongen leest een boek<br />

(lit.) The boy reads a book<br />

We have conducted an fMRI study into production <strong>of</strong> Dutch main clause and embedded clause word order, thus<br />

capturing the neural correlates <strong>of</strong> ‘verb movement’ and the particular difficulty it poses for agrammatic speakers.<br />

We had two hypotheses about the results: 1) production <strong>of</strong> main clauses with finite verbs (verb second) will<br />

correlate with increased brain activation, relative to production <strong>of</strong> embedded clauses with finite verbs; and 2) this<br />

activation will show up in regions related to syntactic processing in other work, in particular Broca’s area (BA<br />

44/45; see Caplan, 2001), a region traditionally claimed to be involved in agrammatic aphasia (Grodzinsky,<br />

2000).<br />

19 Healthy native speakers <strong>of</strong> Dutch performed sentence completion tasks, covertly, on the basis <strong>of</strong><br />

pictures that they were shown, depicting transitive actions. In alternating blocks, verb-second (V2) main clauses<br />

(4a) were elicited after the cue Ik lach want ... [picture], while verb-final (Vf) embedded clauses (4b) were<br />

elicited after the cue Ik lach omdat ... [picture]. The two complementizers want and omdat both mean ‘because’,<br />

but they are subcategorized for different clause types, coordinate and subordinate, respectively.<br />

4a) Ik lach want de jongen leest een boek (coordinate)<br />

(lit.) I’m laughing because the boy reads a book<br />

4b) Ik lach omdat de jongen een boek leest (subordinate)<br />

(lit.) I’m laughing because the boy a book reads<br />

Scanning was carried out on a 1.5 T Siemens Vision scanner, with TR 3 seconds, slice thickness 3.5 mm and 38<br />

slices/volume. A 30 second block consisted <strong>of</strong> 9 trials. Between blocks, a fixation point was shown for 30<br />

seconds. Each participant performed 3 runs <strong>of</strong> 6 blocks per experimental condition. Data were normalized to a<br />

template from the Montreal Neurological Institute, based on 152 brains, and smoothed with a 10 mm filter.<br />

Preprocessing and statistical analyses were carried out with SPM99.<br />

Figure 1 shows the result <strong>of</strong> the subtraction <strong>of</strong> Vf activation from V2 activation, uncorrected for<br />

multiple comparisons (p < 0.001). There is increased brain activation in the verb-second condition, compared to<br />

the activation in the verb-final condition. By contrast, there are no brain areas that show more activation in the<br />

verb-final condition than in the verb-second condition. This confirms our hypothesis 1.


Figure 1 Cortical activation associated with production <strong>of</strong> finite main clauses (V2)<br />

minus production <strong>of</strong> finite embedded clauses (Vf).<br />

With respect to our second hypothesis, we do not find the expected activation increase in Broca’s area,<br />

related to the V2 condition. We do find activation at 7 mm distance from left hemisphere BA 45 (coord. -46, 24,<br />

12), but this is only significant at the voxel-level, uncorrected for multiple comparisons (z = 3.48; p = 0.000).<br />

The two areas that show the strongest activations are in the right hemisphere inferior temporal lobe (BA 21;<br />

coord. 64, -12, -6; z = 4.73) and the left hemisphere prefrontal region (BA 8; coord. -30, 30, 42; z = 4.53).<br />

Following correction for multiple comparisons, these contrasts are significant at p < 0.05, at the cluster-level.<br />

BA 21 has been reported to be involved in the parsing <strong>of</strong> relatively complex syntactic structures (e.g.<br />

Just et al. 1996), and in detection <strong>of</strong> semantic anomaly (Ni et al. 2000). This activation is usually bilateral, which<br />

is indeed what we see in the uncorrected analysis (figure 1; coord. -62, -10, -18; z = 3.42; p = 0.000 at voxellevel).<br />

Left hemisphere BA 8 has been shown to be activated during detection <strong>of</strong> syntactic anomaly (Ni et al.<br />

2000).<br />

In conclusion, these results show that production <strong>of</strong> verb-second sentences in Dutch is indeed correlated<br />

with increased brain activation, relative to production <strong>of</strong> verb-final sentences. This sheds light on the problems<br />

agrammatic speakers have with the verb-second construction. The activation is not directly linked to Broca’s<br />

area, or at the least not restricted to this site, but distributed more widely, involving other areas related to<br />

syntactic processing.<br />

REFERENCES<br />

Bastiaanse, R., Hugen, J., Kos, M. & Zonneveld, van R. 2002. Lexical, morphological, and syntactic aspects <strong>of</strong> verb<br />

production in agrammatic aphasics. Brain and Language, 80, 142-159.<br />

Besten, den H. 1977. On the interaction <strong>of</strong> root transformations and lexical deletive rules. Ms., MIT/Universiteit<br />

van Amsterdam. Published in Studies in West-Germanic Syntax, 1989, dissertation, University <strong>of</strong><br />

Amsterdam.<br />

Caplan, D. 2001. Functional neuroimaging studies <strong>of</strong> syntactic processing. Journal <strong>of</strong> Psycholinguistic Research,<br />

30, 3, 297-320.<br />

Grodzinsky, Y. 2000. The neurology <strong>of</strong> syntax. Language use without Broca’s area. Behavioural and Brain<br />

<strong>Science</strong>s, 23, 1-71 (with open peer commentary).<br />

Just, M. A., Carpenter, P. A., Keller, T. A., Eddy, W. F. & Thulborn, K. R. 1996. Brain activation modulated by<br />

sentence comprehension. <strong>Science</strong>, 274, 114-116.<br />

Koster, J. 1975. Dutch as an SOV language. <strong>Linguistic</strong> Analysis, 1, 111-136.<br />

Ni, W., Constable, R. T., Menci, W. E., Pugh, K. R., Fulbright, R. K., Shaywitz, S. E., Shaywitz, B. A., Gore, J. C.<br />

& Shankweiler, D. 2000. An event-related neuroimaging study distinguishing form and content in<br />

sentence processing. Journal <strong>of</strong> Cognitive Neuroscience, 12, 120-133.


The privilege <strong>of</strong> the first position in agrammatism, child language acquisition and headlines<br />

Francesca Foppolo, Guasti, Maria Teresa, , Claudio Luzzatti & Claudia Caprin<br />

Psychology Department – University <strong>of</strong> Milano-Bicocca<br />

Our goal is to show that omission <strong>of</strong> articles in agrammatic and children speech and in headlines follow a<br />

selective pattern either guided by the grammar <strong>of</strong> the language or by some option made available in natural<br />

languages and not competing with language particular rules. By looking at the use <strong>of</strong> articles in Italian<br />

agrammatism and child speech and in Italian headlines, we show that articles are mainly dropped from the first<br />

clausal position. This privileged status <strong>of</strong> the first position constitutes an option that every languages can avail<br />

itself <strong>of</strong> (see Rizzi, 2002 for subject omission for first position) and made available by the non c-commanded<br />

status <strong>of</strong> the first clausal position (see also Baauw, De Roo, Avrutin, 2002).<br />

The data. Our investigation is based on the spontaneous speech <strong>of</strong> 5 Italian agrammatic patients, on a corpus <strong>of</strong><br />

1500 Italian headlines from different newspapers, on speaker judgments about possible headlines in Italian, and<br />

on the available data from two studies on early Italian (Caprin, 2003; Guasti, Gavarrò, De Lange, & Caprin,<br />

2004).<br />

Methods. The spontaneous production data (from agrammatic patients and children) have been transcribed using<br />

the CHAT system <strong>of</strong> CHILDES (MacWhinney, 1997) and analyzed. We have counted the omissions and the<br />

presence <strong>of</strong> articles in obligatory contexts. Two types <strong>of</strong> contexts were separately examined: utterances lacking a<br />

verb and utterances containing verbs. For verbal utterances, we have counted separately presence/omission <strong>of</strong><br />

articles in front <strong>of</strong> Nouns occurring in preverbal and post verbal position. Headlines have been collected and<br />

classified according to the same criteria; judgments from Italian speakers have also been collected.<br />

Results<br />

Our first finding is that article omission is more frequent in utterances without a verb (M=.52; SD=.118) than in<br />

verbal utterances (M=.16, SD=.08= (t-test= 6,54, p=.007) in the speech <strong>of</strong> agrammatic patients. The same holds<br />

true for children speech (Х 2 = 7.037 p=0.03, Caprin, 2003). Moreover, it is fairly common for Italian headlines<br />

to lack a verb (cervello in mostra “brain on exhibition”; viaggio tra i corpi senza nome “journey among the<br />

bodies without name”) and in this case omission <strong>of</strong> articles is very frequent. When the verb is present, instead,<br />

we find the following possibilities (as already observed by Stowell, 1999 for English headlines):<br />

(1) a. Pitbull ferisce un bambino “Pitbull wounds a child”<br />

b. Pitbull ferisce bambino “Pitbull wounds child”<br />

c. (Milano) salva cucciolo di foca “Milan saves baby seal”<br />

The article is omitted either both from subject and object position or only from subject position. Articles can be<br />

omitted from the object position if the subject is null or is a proper noun. However, it is not possible to omit the<br />

article from the object position if an article is present in the subject position, that is, (2) is not a possible<br />

headline:<br />

(2) *Un pitbull ferisce bambino “A pitbull wounds child”<br />

This subject/object (or, more generally, clause initial/clause internal) asymmetry in the omission <strong>of</strong> articles is not<br />

peculiar to headlines, but it can also be found in child speech, where the number <strong>of</strong> omissions tends to be higher<br />

from the first position than from the clause internal position (Wilcoxon z=3,76, p


<strong>of</strong> working memory, or <strong>of</strong> the mechanism for the recovery <strong>of</strong> lexical items or <strong>of</strong> the articulatory planning system<br />

(see also Kolk, 1995 for a proposal inspired by similar ideas). Limitations in working memory <strong>of</strong> readers<br />

combined with the need for headlines to be effective can be the driving force for article omission in Italian<br />

headlines. Finally, we also observed that article omission is higher in nonverbal utterances than in verbal ones.<br />

This observation will also be related to limitations <strong>of</strong> the performance system.<br />

Baauw, S. E. De Roo, S. Avrutin (2002) Determiner omission in language acquisition and language impairment :<br />

Syntactic and discourse factors. Proceedings <strong>of</strong> the 26 th BUCLD, Sommerville:Cascadilla Press.<br />

Caprin, C. (2003) La grammatica nei primi discorsi: uno studio trasversale sull’acquisizione della morfosintassi<br />

in Italiano. Ph. D. Dissertation, Università di Pavia e Milano-Bicocca.<br />

Kolk, (1995) A time-based approach to agrammatic production. Brain and Language, 50:282-303.<br />

Rizzi, L. (2002) On the grammatical basis <strong>of</strong> language development: A case study. MS. Università di Siena.<br />

Stowell, T. (1999) C-command effects in newspaper headlines. MS. UCLA.


Task dependence effects: What are you asking for?<br />

A good context for elicitation <strong>of</strong> Wh questions<br />

Maria Garraffa<br />

University <strong>of</strong> Siena<br />

Abstract<br />

The aim <strong>of</strong> this paper is to show how could be relevant to have a good elicitation context for testing production<br />

<strong>of</strong> aphasic patients. The main point is the comparison between two different contexts elaborated for elicitation<br />

Wh question. The first was elaborated in elicitation production <strong>of</strong> Wh structures for investigated agrammatic<br />

production (Friedmann, 2002). The second is referred to a task elaborated in acquisition’s research and here<br />

used in agrammatic subjects (Thornton, 1995).<br />

Task dependence effects are a necessary variable to consider in the production, especially in elicitation task, for<br />

valuing if you are eliciting a Wh question. Two Italian agrammatic speakers were tested.<br />

1 Question research<br />

In the investigation <strong>of</strong> agrammatic production a hypothesis recently advanced is that agrammatic subjects could<br />

not project the entire syntactic tree (Friedmann, 1995). So, functional material is not randomly omitted but there<br />

is a selection guided by structural variables.<br />

This hypothesis is called the Tree Pruning Hypothesis. For testing this hypothesis it was selected a type <strong>of</strong><br />

construction crucially involved in the high domain <strong>of</strong> the sentence, the interrogatives. This test was conducted<br />

first with Hebrews, Arabic and English subjects (Friedmann, 2002). The main asymmetries arise from this article<br />

was the difference between Yes/No construction and Wh construction, and a significant number <strong>of</strong> substitution<br />

<strong>of</strong> Wh question for Yes/No question. This preference for Yes/No question was interpreted by the author in the<br />

sense that the Yes/No questions don’t involve movement to CP layer and so they are preserved in agrammatism.<br />

On the contrary Wh questions are disturbed for the request movement <strong>of</strong> the Wh operator in CP. In this paper we<br />

want to address the problem <strong>of</strong> the task dependent effects, and the fact that the substitution for Yes/No question<br />

is a preference derivate by this kind <strong>of</strong> effects and not by the pruning <strong>of</strong> the structure.<br />

2 Materials and Methodology<br />

In this experiments we are interested in the ability <strong>of</strong> building interrogative sentence starting from different<br />

elicitation contexts. We tested two kinds <strong>of</strong> elicitation contests alternativly in two agrammatic subjects .<br />

2.1 Subjects<br />

Pathological subjects : The subject selected, C.D. and M.R. has diagnosticaded an aphasia by standard battery<br />

for italian speakers (B.A.D.A.) (Miceli,e coll.), a focal lesion in the left emisphere in area FTP caused by an ictus<br />

in the zone <strong>of</strong> the left artery. The most typicall features arised by the battery are the difficulty in production <strong>of</strong><br />

verbs, errors in the comprehension <strong>of</strong> passive sentences with inversion <strong>of</strong> thematic roles, non fluent production


with omission <strong>of</strong> functional materials and low scores in working memory tasks. This simptoms are normally<br />

defined as agrammatic aphasia.<br />

Subject Age Edu Post –<br />

On set<br />

Lesion<br />

M.R. 42 18 2 Years FTP<br />

Subject Age Edu Post -<br />

on set<br />

Lesion<br />

C.D. 45 8 5 Years FTP<br />

2. 2 Elicitation contexts<br />

The task was introduced in a elicitation context inviting the subject to produce a question. It is like to create a<br />

scenario <strong>of</strong> plausibile common life.<br />

a. First context<br />

In the elicitation task used in aphasia, subjects heard a sentence with a missing detail, signified by non-specific<br />

words like “someone” or “something”, and were required to ask a question about the missing detail (see example<br />

(1) ).<br />

You think that your daughter comes back to school and she is telling you about her day.The point is that<br />

she doesn’t tell you so many things and you want to know the missing details.<br />

For example she said to you that someone kissed her and you want to know about this boy.<br />

So you ask...<br />

(1) Experimenter: Danny ate something. You want to ask me about this thing. So you ask….<br />

B. Second Context<br />

Target: ma dani axal?<br />

What Danny ate?<br />

(Friedmann,2002)<br />

In the experiment for children the investigator tell a story to the child; this was the context for elicitation. At the<br />

end <strong>of</strong> the story the investigator asked the child to ask at the puppet a detail <strong>of</strong> the story :<br />

(2) Investigator:<br />

“In that story, there was something the spaceman didn’t like.<br />

Ask the snail What ”<br />

(Thornton,1995)<br />

In the task created for the patient Wh elements were inserted, like in children’s context.


(3) First Elicitation task:<br />

“Gaia ate something. You want to ask me about this thing, so you ask …”<br />

(4) Second elicitation task:<br />

a. “Gaia ate something. You want to ask what. So you ask...<br />

b. “Gaia went in some place . You want to ask where . So you ask...”<br />

In (4) the Wh element is already present in the context and the subject doesn’t have to search in the lexicon for a<br />

Wh element. The subject has to create the interrogative sentence substituing the indefinite <strong>of</strong> the first sentence<br />

with the Wh and moving it in CP.<br />

3 Results<br />

The most relevant difference in the data obtained regards the substitution <strong>of</strong> Wh question with Yes/No question.<br />

This typology <strong>of</strong> error is mostly present in one context and not in the context taking from acquisition research.<br />

Substitution for Yes/No Friedmann context % Thornton context %<br />

C.D. 18/24 75 9/24 37,5<br />

M.R. 10/36 27,7 0/72 0<br />

Total 28/60 46,6 9/96 9,3<br />

Tab.1 C.D. and M.R. data on the production <strong>of</strong> Wh question<br />

Also the control subject didn’t produce all Wh question with the first kind <strong>of</strong> context.<br />

4 Discussion<br />

So the production <strong>of</strong> Yes/No question instead <strong>of</strong> Wh question is not a problem <strong>of</strong> structure but a problem <strong>of</strong> task.<br />

If we want to test the movement <strong>of</strong> the operator in the CP domain, this was the reason for selecting thie<br />

interrogatives, is important to have the right context.<br />

In the first type <strong>of</strong> context we are asking for an A’ dependeces , in the second context we are asking specifically<br />

for the construction <strong>of</strong> a Wh dependecy, so we don’t have (or with have only marginally) a substitution with Yes<br />

/No question. This data is quite important for hypothesis that has his empirical background in the differents<br />

between Wh and Yes/No question.<br />

In our opinion in Friedman’s test we are not eliciting the movement <strong>of</strong> the Wh operator in CP. Subjects answered<br />

to the task producing an A’ depencies, so also a Yes/No question .<br />

Bibliography<br />

Friedman,N.<br />

2002 Question production in Agrammatism: The tree Pruning Hypothesis. Brain & Language 80:160-187<br />

Rizzi,L.<br />

1997 The fine structure <strong>of</strong> the left periphery . In Elements <strong>of</strong> grammar, edited by Haegmann L., Dordrecht:<br />

Kluwer


1999 On the position Int(errogative) in The Left Perifery <strong>of</strong> the clause. Manuscript University <strong>of</strong> Siena<br />

Thornton, R..<br />

1995 Referentiality and Wh-movement in Child English: Juvenile Delinkuency. Language acquisition 4.


QUESTION PRODUCTION IN AN ITALIAN AGRAMMATIC SPEAKER:<br />

MINIMALITY EFFECTS<br />

Maria Garraffa, University <strong>of</strong> Siena<br />

garraffa@studenti.unisi.it<br />

Antonino Grillo, University <strong>of</strong> Utrecht and University <strong>of</strong> Siena<br />

Nino.Grillo@let.uu.nl<br />

Research question<br />

The goal <strong>of</strong> this presentation is tw<strong>of</strong>old. Firstly we will present the results <strong>of</strong> a test on production <strong>of</strong> WH-<br />

questions by an Italian agrammatic aphasic. Secondly we will discuss the results in the light <strong>of</strong> an approach to<br />

agrammatic aphasia developed in Grillo (2003). The basic claim is that, due to a processing resource limitation,<br />

aphasic’s syntactic representations could be impoverished <strong>of</strong> some features necessary for the normal<br />

computation <strong>of</strong> “long distance” 1 chains.<br />

Design <strong>of</strong> the study<br />

a. The Subject<br />

The subject selected, M.R., has diagnostic an aphasia by standard battery for Italian speakers (B.A.D.A.) (Miceli,<br />

& Coll.), a focal lesion in the left hemisphere in area FTP caused by an ictus in the zone <strong>of</strong> the left artery. The<br />

subject shows non-fluent production with omission <strong>of</strong> functional materials, difficulty in production <strong>of</strong> verbs,<br />

errors in the comprehension <strong>of</strong> sentences with inversion <strong>of</strong> thematic roles. These symptoms are commonly<br />

defined as agrammatic aphasia.<br />

b. Material and methods<br />

The task elaborated for the elicitation <strong>of</strong> question is taken from acquisition’s research (Thornton, 1995) and here<br />

readapted for pathologies. The subject M.R. was invited to produce an interrogative sentence after a context<br />

created for the elicitation.<br />

Elicitation task:<br />

a. “Gaia ate something. You want to ask what. So you ask...<br />

b. “Gaia went in some place . You want to ask where . So you ask...”<br />

In this context the Wh element is already present in the context and the subject has to create the interrogative<br />

sentence substituting the indefinite <strong>of</strong> the first sentence with the Wh and moving it in CP.<br />

Results<br />

A series <strong>of</strong> clear asymmetries are registered in the M.R.’s performance with subject vs. object Wh-.<br />

WH – Questions N Correct %<br />

Who- subject 12 9 75<br />

Who – object 12 0 0<br />

What - object 12 9 75<br />

TOTAL 36 18 50<br />

Tab.1 Interrogatives produced by M.R. in the task<br />

REFERENTIAL Wh- questions N Correct %<br />

1<br />

By “long distance” we refer to chains generated by movement <strong>of</strong> an NP over another one. In the case discussed<br />

here Subject vs. Object WH-.


Tab.2 Interrogative with Which- operator produced by M.R.<br />

i) While she shows close to normal performance with subject wh- (75/ 85% correct), her<br />

performance degrades with the latter, reaching 0% <strong>of</strong> correct productions with who-objectquestions.<br />

ii) Subject’s performance varies considerably also between who-object questions (0% correct) and the<br />

same construction with what (75% correct).<br />

Discussion <strong>of</strong> the data<br />

Subject 24 20 83,3<br />

Object 24 13 54,1<br />

Tot 48 23 47,9<br />

According to the Relativized Minimality (RM) approach (Rizzi, 1990), in a configuration like (1), a local<br />

structural relation cannot hold between X and Y if Z is a potential bearer <strong>of</strong> the relevant relation and Z intervenes<br />

between X and Y.<br />

(1). . . X . . . Z . . . Y . . .<br />

So for instance the local relation linking a moved phrase to its trace holds in (2), but not in (3)b 2 : the Wh<br />

operator who intervenes between how and its trace in (3)b, since who is a potential bearer <strong>of</strong> the antecedent<br />

relation, the required antecedent-trace relation fails, and the question is agrammatical.<br />

(2)a How did you solve the problem?<br />

b How did you solve the problem t?<br />

(3)a I wonder who could solve the problem in this way<br />

b * How do you wonder who could solve this problem t?<br />

Rizzi (2001) shows that the possibility to form a chain between X and Y depends on the nature <strong>of</strong> the elements<br />

involved and more specifically on the set <strong>of</strong> morphosyntactic features associated to each element.<br />

(4 ) . . . X . . . Z . . . Y . . .<br />

[ α,β,γ,δ, ε ] [α,β,γ,δ] [ α,β,γ,δ,ε]<br />

In (4) a particular set <strong>of</strong> morphosyntactic features is associated with every node. Given this configuration, RM<br />

allows the formation <strong>of</strong> a relation Σ between X and Y: the presence <strong>of</strong> the element ε suffices for RM to see the<br />

difference between X and Z and therefore to authorize the movement <strong>of</strong> Y over Z (it is necessary to think about ε<br />

as the distinctive feature <strong>of</strong> the particular head and the relevant relation we are considering, i.e. a [wh-] feature in<br />

the head <strong>of</strong> a FocP, which if missed would imply a change <strong>of</strong> “class” <strong>of</strong> the relevant set from Argumental to<br />

Quantificational).<br />

Grillo (2003) claims that, a cause <strong>of</strong> their limited processing capacity, aphasics are not always capable to<br />

maintain active the representation <strong>of</strong> all the morphosyntactic features normally associated with syntactic nodes.<br />

Such impoverishment can involve some <strong>of</strong> the features needed for the computation <strong>of</strong> structures involving<br />

dependencies over possible interveners.<br />

2 Examples from Rizzi (2001).


(5) . . . X . . . Z . . . Y . . .<br />

[α, β, γ] [α, β, γ] [α, β, γ]<br />

X<br />

This leads to expect an asymmetry in aphasic’s treatment <strong>of</strong> dependencies: those involving the “crossing” over<br />

an NP by another one should be more problematic than those that don’t imply such crossing. The asymmetry<br />

between aphasic comprehension <strong>of</strong> object (which implies crossing <strong>of</strong> the subject NP) vs. subject movement<br />

(which doesn’t imply crossing <strong>of</strong> any NP) confirms this hypothesis on the comprehension side. The present study<br />

indicates that a minimality effect <strong>of</strong> the kind described above can be at the base <strong>of</strong> the asymmetries found. The<br />

main difference between the constructions tested here is related, in fact, to the presence or absence <strong>of</strong> a potential<br />

intervener between the moved element and its trace. Subject questions are correctly predicted not to be<br />

problematic, no NPs intervenes between the moved subject and its trace. No minimality effects are expected<br />

even if the syntactic representation is impoverished.<br />

(6 ) Subje ct wh - :<br />

A.<br />

Normal Representation<br />

[ N , + Animate , φ s,nom , θ 1 , + Wh] [N, + animate,φs,nom,θ1 ,+Wh]<br />

Chi < chi > ti ha baciato?<br />

B.<br />

Agrammatic Representation<br />

[ N, + Animate] [N, + Animate]<br />

Chi < chi > ti ha baciato?<br />

This situation is reversed with object wh-, these construction require the establishment <strong>of</strong> a dependency over an<br />

intervening NP. Under the present approach, in case <strong>of</strong> an underspecification <strong>of</strong> the morphosyntactic features we<br />

will expect a minimality effect and a failure in the attempt to produce the sentence.<br />

(7 ) Object wh - :<br />

Normal Representation<br />

A. [ N , + Animate , φ s,acc , θ 2 , + Wh ] [ N, + animate,φs,nom,θ1] [N,+ Animate , φ s,acc , θ 2 , +<br />

Wh ]<br />

B.<br />

Chi pro hai baciato ?<br />

Agrammatic Representation<br />

[N,+ animate [N,+ animate] [N,+ animate]<br />

Chi pro hai baciato < chi > ?<br />

X<br />

Given the agrammatic representation schematized in (7b) RM will block object movement over the intervening<br />

pro subject. The presence <strong>of</strong> the sole categorical and semantic features does not suffice for RM to “see” the<br />

difference between the elements involved.


However this could not be the case with the third kind <strong>of</strong> constructions we had taken into consideration: Objectwhat-questions,<br />

which don’t seem to be problematic. It is natural to think that the presence <strong>of</strong> the [-animate]<br />

feature associated with the object opposed to the [+animate] carried by the subject suffice for RM to distinguish<br />

between the two NPs and “authorize” the crossing <strong>of</strong> the subject.<br />

Normal Representation<br />

C. [ N, ¬ Animate , φs,acc , θ 2 , + Wh ] [ N, + animate,φs,nom,θ1] [N,¬ Animate , φ s,acc , θ 2, +<br />

Wh ; ]<br />

References<br />

Che cosa pro hai mangiato < che cosa >?<br />

Agrammatic Representation<br />

D. [ N, ¬ Animato ] [ N, + Animato ] [N, ¬ Animato]<br />

Che cosa pro hai mangiato < che cosa > ?<br />

Friedmann, N. (2002) Question production in Agrammatism: The tree Pruning Hypothesis. Brain & Language<br />

80:160-187<br />

Garraffa, M. (2003) Produzione di interrogative in un parlante italiano agrammatico: alcune asimmetrie. Tesi di<br />

Laurea, Università di Siena.<br />

Grillo, A. (2003) Agrammatic comprehension between processing and representation, Minimality Effects.<br />

Unpublished Tesi di Laurea, Universita’ di Siena<br />

Grodzinsky, Y. 2000a The neurology <strong>of</strong> syntax. : language use without Broca’s area. Behavioural and Brain<br />

<strong>Science</strong> 23 (1) : 47-117.<br />

2000 b Syntactic dependecies as memorized Sequences in the Brain. Paper presented at the Tennet XI Annual<br />

Conference on Theoretical and Experimental Neuropsychology. Montreal<br />

Hickok , G. e Avrutin , S.1995 Comprehension <strong>of</strong> WH questions by two agrammatic Broca’s aphasics. Brain &<br />

Language, 51: 10-26<br />

Miceli, G., Burani, C., Capasso, R. e Laudanna, A. 1994 Batteria per l’analisi dei deficit afasici - B.A.D.A. .<br />

CEPSAG, [ 2 nd edizione<br />

Rizzi, L. (1990) Relativized Minimality, MIT Press.<br />

(2001) Locality and left periphery, In Belletti, A., ed. (2002) Structures and Beyond, OUP<br />

Thornton, R. (1995) Referentiality and Wh-movement in Child English: Juvenile Delinkuency. Language<br />

acquisition 4.


Minimality effects in agrammatic comprehension<br />

Antonino Grillo, University <strong>of</strong> Siena, Utrecht University<br />

The goal <strong>of</strong> this presentation is to introduce a new hypothesis on the origin <strong>of</strong> some <strong>of</strong> the most<br />

common pattern <strong>of</strong> comprehension in agrammatic Broca’s aphasia. A large amount <strong>of</strong> attention has<br />

been paid in the last decades to the so-called capacity limitation approaches, while important critics<br />

have been moved to any representational approach to the topic, especially regarding the “variation”<br />

problem. Less attention has been devoted to the problems raised by “processing” approaches, one this<br />

problems we can call the “complexity” problem: processing approaches state that aphasics<br />

comprehension is poor for more complex constructions, but nothing is said on the nature <strong>of</strong> such<br />

complexity. If we want build a complete theory <strong>of</strong> aphasia we need to know also why certain<br />

constructions are more complex than others. We believe that the only way to reach this goal is to<br />

define the possible effects <strong>of</strong> a processing capacity limitation at the representational level getting rid <strong>of</strong><br />

any generic definition <strong>of</strong> complexity.<br />

Our proposal in such sense is that a reduced processing capacity can generate an underspecification at<br />

the syntactic level, more exactly the inaccessibility (alternatively the fast decay in the sense <strong>of</strong> Kolk,<br />

1995) <strong>of</strong> part <strong>of</strong> the morphosyntactic features normally associated with syntactic nodes. This<br />

impoverishment can in turn give rise to possible minimality effects, which would explain some <strong>of</strong> the<br />

most typical asymmetries in aphasic’s comprehension between subject and object constructions and<br />

more generally their poor performance with constructions involving the establishment <strong>of</strong> a dependency<br />

over a possible intervener.<br />

2. Summary <strong>of</strong> the data to explain<br />

We will discuss and explain the following asymmetries in agrammatic comprehension:<br />

Subject/object relatives<br />

Subject/object clefts<br />

Active/passives<br />

Passives/unaccusatives<br />

Subject/object control<br />

Datives/double object constructions<br />

Subject/object D-linked questions<br />

SVO/OSV-OVS in Hebrew<br />

3. Theoretical framework<br />

According to the Relativized Minimality (RM) approach (Rizzi, 1990), in a configuration like (1), a<br />

local structural relation cannot hold between X and Y if Z is a potential bearer <strong>of</strong> the relevant relation<br />

and Z intervenes between X and Y.<br />

(1) ....X .…Z .…Y.…<br />

So for instance the local relation linking a moved phrase to its trace holds in (2), but not in (3)b 3 : the<br />

Wh- operator who intervenes between how and its trace in (3)b, since who is a potential bearer <strong>of</strong> the<br />

antecedent relation, the required antecedent-trace relation fails, and the question is ungrammatical.<br />

(2) How did you solve the problem t ?<br />

(3)a I wonder who could solve the problem in this way<br />

b * How do you wonder who could solve this problem t ?<br />

Rizzi (2001) shows that the possibility to form a chain between X and Y depends on the nature <strong>of</strong> the<br />

elements involved and more specifically on the set <strong>of</strong> morphosyntactic features associated to each<br />

element.<br />

3 Examples from Rizzi (2001).


(4 ) . . . X . . . Z . . . Y . . .<br />

[ α,β,γ,δ, ε ] [α,β,γ,δ] [ α,β,γ,δ,ε]<br />

In (4) a particular set <strong>of</strong> morphosyntactic features is associated with every node. Given this<br />

configuration, RM allows the formation <strong>of</strong> a relation Σ between X and Y: the presence <strong>of</strong> the element<br />

ε suffices for RM to see the difference between X and Z and therefore to authorize the movement <strong>of</strong> Y<br />

over Z.<br />

3. Main claim<br />

If for any reason some <strong>of</strong> the features associated with the syntactic nodes are deleted we will expect a<br />

reduction <strong>of</strong> the possibility to establish relationships over intervening elements, because RM will<br />

block it, as there is no feature mismatch between X and Z.<br />

Our claim is that, a cause <strong>of</strong> their limited processing capacity, aphasics can’t access the representation<br />

<strong>of</strong> the features needed for the computation <strong>of</strong> structures involving dependencies over possible<br />

interveners.<br />

Theory applied<br />

The application is illustrated by the well-known asymmetry in aphasic’s comprehension <strong>of</strong> subject vs.<br />

object clefts.<br />

Normal Representation<br />

[ N;θ 2;ϕ m,s,acc;Σ ][N;θ 1 ;ϕ f,s,nom][N;θ 1;ϕ f,s,nom][N;θ 2;ϕ m,s,acc;Σ]<br />

6 [It is [the boy j [whoj [[the girl]i [i loved j ]]]]]<br />

Spec<br />

(5) . . . X . . . Z . . . Y . . .<br />

[α,β,γ,δ,ε] [α,β,γ,δ] [α,β,γ,δ,ε]<br />

XP<br />

X<br />

’<br />

X<br />

[ α,β,γ,δ,ε] °<br />

Spec<br />

WP<br />

The formation <strong>of</strong> the relevant chains between the moved NPs and their traces is authorized by RM in<br />

virtue <strong>of</strong> the presence <strong>of</strong> the features [ϕs,acc;Σ] distinct from the features [ϕs,nom]. It is specifically the<br />

presence <strong>of</strong> the Σ feature (that we can call a “relative” feature), that defines the object as<br />

member <strong>of</strong> a class distinct from the one to which the subject belongs. Being the Operator’s<br />

class the former and Argumental the latter.<br />

W<br />

’<br />

W° ZP<br />

Z<br />

Spec ’<br />

Z°<br />

[ α,β,γ,δ]<br />

YP<br />

Spec<br />

Y<br />

’<br />

. . .<br />

Y<br />

[ α,β,γ,δ,ε] °


Agrammatic Representation<br />

[N] [N] [N; θ 1 ]<br />

7 This is [the boy] who [the girl] [ loved ]<br />

[N;θ 2<br />

If aphasic patients are not able to access some features their representation <strong>of</strong> these constructions is<br />

impoverished as showed in (7). Because <strong>of</strong> the impoverishment <strong>of</strong> features, the subject NP becomes a<br />

potential intervener between the object NP and its trace and RM blocks the formation <strong>of</strong> the relevant<br />

chain, as a consequence it is impossible to assign the correct theta role to each argument. The<br />

situation is reversed with subject relatives, which are correctly interpreted by agrammatic patients. In<br />

this case, in fact there is no NP intervening between the moved constituent and its trace, which means<br />

that there could be no RM effects.<br />

8 T his is [the boy]who[ loved the girl]<br />

Even an underspecified representation <strong>of</strong> a subject cleft allows us to form the relevant chain and to<br />

recover the thematic information: no potential bearer <strong>of</strong> the relevant relation intervenes between the<br />

moved element and its trace. Following the same line it is possible explain other comprehension<br />

patterns reported in the literature. Comprehension is compromised whenever there are potential<br />

interveners between a moved NP and their traces, whereas it is preserved when no potential antecedent<br />

intervenes. Following the same lines we are able to explain the other asymmetries listed in above. We<br />

will also claim that the same system can apply to passive constructions, in which the subject originally<br />

merged in [Spec,VP] intervenes between the moved object and its trace.<br />

References<br />

Kolk, H. (1995) A time-based approach to agrammatic production. Brain and Language, 50: 282-303.<br />

Rizzi, L. (1990) Relativized Minimality. MIT Press<br />

(2001) Locality and left periphery, In Belletti, A., ed. (2002) Structures and Beyond, OUP<br />

Starke, M. (2001) Move dissolves into merge, a theory <strong>of</strong> locality, Doctoral dissertation, University <strong>of</strong><br />

Geneva.<br />

]


Sentence Comprehension and Working Memory Limitation in Conduction aphasia:<br />

Interaction between type <strong>of</strong> processing and output and input deficits<br />

Aviah Gvion 1,2 , Naama Friedmann 1<br />

1 Tel Aviv University, 2 Reuth medical center<br />

The current study explored the nature <strong>of</strong> the relation between verbal working memory deficit and sentence<br />

comprehension, focusing on sentence comprehension in conduction aphasia. The two main comparisons that<br />

were made were between sentences that require semantic-syntactic reactivation vs. sentences that require<br />

phonological reactivation, and between input buffer conduction aphasia (repetition) and output buffer conduction<br />

aphasia (reproduction) (Shallice & Warrington, 1977; Shallice, Rumiati, & Zadini, 2000).<br />

We compared two types <strong>of</strong> processing required during sentence comprehension: syntactic-semantic reactivation<br />

and word-form (phonological) reactivation. In both sentence types we increased phonological working memory<br />

load by increasing the number <strong>of</strong> words between a word and the position <strong>of</strong> its reactivation.<br />

Participants<br />

Ten conduction aphasics participated in the study. All participants had pre-morbidly full control <strong>of</strong> Hebrew. All<br />

patients had 12 years <strong>of</strong> education and above.<br />

Working memory and phonological input-output evaluations<br />

Recall and recognition span tasks were used to measure the phonological WM capacity. Recall tests included<br />

word span: phonologically similar/dissimilar as well as long/short words and non-word span. Recognition tests<br />

included digit and word spans, listening span and 3 versions <strong>of</strong> N-back, with two different SOAs.<br />

Output buffer tasks included a full transcription <strong>of</strong> spontaneous speech, repetition <strong>of</strong> words and non-words,<br />

visual confrontation naming tasks as well as various phonological manipulation tasks such as spoonerism and<br />

sound deletions. Input tasks included auditory rhyming judgment tasks as well as auditory plausibility<br />

phonological judgment tasks.<br />

Results <strong>of</strong> working memory assessment<br />

a. Very limited recall spans in all conduction aphasic participants.<br />

b. Two patients were near normal in recognition spans suggesting a selective output buffer deficit.<br />

c. Four patients manifested selective input deficit and four patients suffered from both input and output<br />

disorders.<br />

Sentence comprehension experiments<br />

Experiment 1: does gap-antecedent distance in relative clauses interact with WM limitation?<br />

160 Hebrew relative clauses were included in a binary sentence-picture matching task in which the participant<br />

heard a sentence and chose between the matching picture and a reversed-role foil. Number <strong>of</strong> words between the<br />

antecedent and the gap (2,5,7 or 9 words), and relative-clause type (subject vs. object) were manipulated.<br />

Examples (translated from Hebrew)<br />

1a) 9-word distance object-relative: This is the NURSE with the-white gown, the-round<br />

eyeglasses and-the-merciful smile that-the-girl dresses__.<br />

1b) 2-word distance object-relative: This is the NURSE that-the-girl dresses__.<br />

Results<br />

a. Non <strong>of</strong> the conduction aphasics whose working-memory was very limited (spans 2-3 words) showed deficit in<br />

subject and object relative-clause comprehension (89%-96% correct).<br />

b. None <strong>of</strong> the conduction aphasics showed any effect <strong>of</strong> length.


Friedman and Gvion (2003) conjectured, based on Love and Swinney (1996) and McElree (2000), that<br />

antecedent-gap distance had no effect on comprehension because the processing at the gap position involves<br />

semantic, rather than phonological, reactivation <strong>of</strong> the antecedent, and therefore distance that is measured by<br />

phonological units and phonological memory limitation does not affect comprehension. This led us to examine<br />

comprehension in structures that require phonological reactivation, which might result in impaired<br />

comprehension.<br />

Experiment 2 – does disambiguation distance interact with WM limitations?<br />

80 Hebrew sentences with ambiguous words that get disambiguated either after 2-3 words or after 7-9 words<br />

were included in a plausibility judgment and paraphrasing task (auditory presentation). 100 additional<br />

semantically implausible or plausible sentences matched for served as fillers (see examples 2ab that use the<br />

ambiguous word “pen” that means either writing instrument or the place were sheep live).<br />

2a) The PEN that the student received from his grandma when he graduated was packed with wooly sheep.<br />

2b) The PEN is always packed with wooly sheep.<br />

This type <strong>of</strong> structure includes temporary lexical ambiguity, that at some point <strong>of</strong> the sentence gets<br />

disambiguated to the less dominant meaning, and thus requires the reactivation <strong>of</strong> the original phonological word<br />

in order to re-access all meanings and allow for reanalysis. Unlike in experiment 1, in these sentences<br />

phonological, rather than semantic reactivation is required, and this type <strong>of</strong> reactivation might be hampered by<br />

phonological overload, and comprehension should be compromised when phonological WM is limited.<br />

Results<br />

a. All the conduction aphasics that suffer from a verbal WM limitation (input buffer deficit or “repetition<br />

conduction aphasia”) showed a severe deficit in comprehension <strong>of</strong> long distance disambiguation sentences,<br />

rejecting more than half <strong>of</strong> the sentences as “implausible”. They showed no comprehension problem when the<br />

same ambiguity was resolved after 2-3 words.<br />

b. The participants without verbal WM limitation (output buffer deficit or “reproduction conduction aphasia”)<br />

did not show any comprehension problem even in this type <strong>of</strong> sentences.<br />

These results were further replicated using a rhyme judgment and paraphrasing tasks <strong>of</strong> structures with short and<br />

long distance between two rhyming words.<br />

Conclusions<br />

Our results indicate that in general, individuals with conduction aphasia do not suffer from sentence<br />

comprehension deficit. It is only a subtype <strong>of</strong> conduction aphasia and a very special type <strong>of</strong> sentences that yield a<br />

deficit in comprehension in conduction aphasia.<br />

Sentences that require semantic-syntactic deficit do not pose any problem for the 10 individuals with conduction<br />

aphasia who participated in the study.<br />

Sentences in which phonological reactivation was required posed a problem only to the individuals who suffer<br />

from limited WM, with the input buffer deficit, and only in the presence <strong>of</strong> phonological overload beyond the<br />

patient’s capacity. The same phonological overload did not have the effect when a syntacto-semantic reanalysis<br />

was required. These results suggest that the type <strong>of</strong> reactivation required by the sentence, as well as the type <strong>of</strong><br />

memory overload are crucial in determining the effect <strong>of</strong> WM limitation on sentence comprehension.<br />

Friedmann, N., & Gvion, A. (2003). Sentence comprehension and working memory limitation in aphasia: A<br />

dissociation between semantic-syntactic and phonological reactivation. Brain and Language, 86, 23-39.<br />

Love, T., & Swinney, D. (1996). Co-reference processing and levels <strong>of</strong> analysis in object-relative constructions:<br />

Demonstrations <strong>of</strong> antecedent reactivation with the cross-modal priming paradigm. Journal <strong>of</strong> Psycholonguistic<br />

Research, 25, 5-24.<br />

McElree, B. (2000). Sentence comprehension is mediated by content-addressable memory structures. Journal <strong>of</strong><br />

Psycholonguistic Research, 29, 111-123.<br />

Shallice, T., Rumiati, R.I., & Zadini, A. (2000). The selective impairment <strong>of</strong> the phonological output buffer.<br />

Cognitive Neuropsychology, 17, 517-546.<br />

Shallice, T., & Warrington, E.K. (1977). Auditory-verbal short-term memory impairment and conduction<br />

aphasia. Brain and Language, 4, 479-491.


Verb retrieval in anomic aphasic speakers: the role <strong>of</strong> sentence context.<br />

Roel Jonkers & Christien Prak<br />

Department <strong>of</strong> <strong>Linguistic</strong>s, University <strong>of</strong> Groningen (NL)<br />

Introduction<br />

In studies on verb processing in aphasic speakers, different patterns <strong>of</strong> performance have been found for verb<br />

retrieval in isolation and in spontaneous speech. Williams and Canter (1987), Bastiaanse and Jonkers (1998), and<br />

Pashek and Tompkins (2002) showed that there is no significant correlation between action naming scores and<br />

the production or diversity <strong>of</strong> verbs in spontaneous speech or narrative discourse.<br />

In action naming, a target verb has to be retrieved in isolation, whereas in spontaneous speech verbs are<br />

produced within sentences and there is no target verb. A third possibility to study the production <strong>of</strong> verbs is the<br />

investigation <strong>of</strong> verb retrieval in sentence context. In these cases, target verbs have to be produced within a<br />

sentence. Williams & Canter (1987) showed that especially anomic speakers pr<strong>of</strong>it from sentence context in<br />

order to find the intended verb. The relation between verb retrieval in isolation, sentence context and<br />

spontaneous speech has, however, never been studied in a group <strong>of</strong> anomic aphasic speakers.<br />

Methods and Materials<br />

Subjects: 11 anomic speakers were tested (mean age 60, 7 male, 4 female). All aphasic subjects were righthanded<br />

and suffered from aphasia due to a single stroke. Spontaneous speech data <strong>of</strong> 10 age-matched non-braindamaged<br />

control subjects were used for comparison.<br />

Materials and procedure: Action naming and verb retrieval in sentence context were tested with the tests<br />

described by Jonkers (1998). Both tests contain 60 items. For action naming a picture was shown, after which the<br />

subject was asked to tell in one word which action was depicted. For verb retrieval in sentence context a picture was<br />

shown and the subject was asked to tell in one sentence what was happening in this picture. For both tests, an item<br />

was scored as correct, if the target verb was produced.<br />

A spontaneous speech sample was obtained by asking the subjects to tell about their speech problems, their work,<br />

and their hobbies. The spontaneous speech was analysed with the method <strong>of</strong> Vermeulen, Bastiaanse, and Van<br />

Wageningen (1989). 300 Words per sample were used for this analysis. The total number <strong>of</strong> verbs and the diversity<br />

<strong>of</strong> the verbs, expressed by the type-token-ratio (number <strong>of</strong> different verbs divided by the total number <strong>of</strong> verbs), were<br />

calculated.<br />

Statistics: Verb retrieval in isolation and in sentence context were compared using a paired t-test. Comparisons<br />

between the number <strong>of</strong> verbs and the type-token-ratio <strong>of</strong> the verbs produced by the anomic speakers and the<br />

control subjects were made with an independent t-test. Correlations between verb retrieval scores in isolation,<br />

sentence context and the type-token-ratio for verbs in spontaneous speech were calculated with the Pearson test.<br />

Results<br />

The scores for verb retrieval in isolation, sentence context, and in spontaneous speech are depicted in table 1.<br />

Table 1:<br />

A. Mean and standard deviation for the scores <strong>of</strong> the anomic speakers in verb retrieval in isolation and sentence<br />

context (max.= maximum score)<br />

B. Mean and standard deviation for the total number <strong>of</strong> verbs and the type-token-ratio for verbs in the<br />

spontaneous speech <strong>of</strong> the anomic speakers (n=11) and the control subjects (n=10).<br />

A. test results anomic speakers max.<br />

verb retrieval in isolation 28.8 (12.3) 60<br />

verb retrieval in sentence context 33.6 (12.0) 60<br />

B. spontaneous speech anomic speakers control subjects<br />

number <strong>of</strong> verbs 40.5 (4.5) 34.8 (5.6)<br />

type-token-ratio 0.54 (0.15) 0.74 (0.10)<br />

No significant difference was found between verb retrieval in isolation and in sentence context (t(10)=1.80,<br />

p>0.05). A significant correlation was found between the scores for both tests (rho=0.73, p


No correlation was found for the anomic speakers between verb retrieval in isolation and the diversity <strong>of</strong> the<br />

verbs in spontaneous speech (rho=0.37, p>0.05). However, verb retrieval in sentence context, significantly<br />

correlated with verb diversity in spontaneous speech (rho=-0.66, p


PERCEPTION OF SIGN-LEXEMES VERSUS NON-VERBAL MOVEMENT OF HANDS<br />

AND ARMS IN DEAF SIGNERS AND HEARING NON-SIGNERS: AN FMRI-STUDY<br />

Juliane Klann (*#§), Frank Kastrau (*), Walter Huber (#)<br />

*: Interdisciplinary Centre <strong>of</strong> Clinical Research \"CNS\", University Hospital Aachen; #: Neurolinguistics at the<br />

Dept. <strong>of</strong> Neurology, University Hospital Aachen; §: Dept. <strong>of</strong> <strong>Linguistic</strong>s, University <strong>of</strong> Cologne<br />

Introduction:<br />

Sign languages make extensive use <strong>of</strong> hand- and arm-movements in three-dimensional space. This implies, that<br />

production and perception <strong>of</strong> sign language requires systems, whose functions are represented in different neural<br />

networks, namely the planning respectively the analysis <strong>of</strong> hand- and arm-movements, that is known to be<br />

represented in parietal cortex and the processing <strong>of</strong> language, that is represented in a perisylvian network mainly<br />

concerning frontal and temporal cortical regions. This well established dissociation <strong>of</strong> neuro-anatomical<br />

correlates leads to the assumption, that deaf signers may recruit both systems when they process sign language,<br />

whereas hearing non-signers should activate parietal regions only, since they are not familiar with sign language<br />

as a natural language system.<br />

Lesion data as well as imaging studies document that deaf signers do not recruit parietal cortex for the<br />

processing <strong>of</strong> sign lexemes. In order to pursue these issues further, we compared the processing <strong>of</strong> verbal and<br />

non-verbal hand- and arm- movements in deaf signers and hearing non-signers. To gain an insight in anatomical<br />

localization, functional Magnetic Resonance Imaging (fMRI) was conducted.<br />

Subjects:<br />

The participants were 11 prelingually deaf, age ranging from 22 to 43 years, with primary competence in<br />

German Sign Language (DGS = Deutsche Gebärden Sprache). The control-group consists <strong>of</strong> 11 hearing,<br />

matched for sex, age and education, with no competence in DGS. All subjects were right-handed.<br />

Methods:<br />

The same task was <strong>of</strong>fered to all participants, hearing as well as deaf, in DGS and written German. Both<br />

conditions were presented separately, each condition in one block. The first block included written nouns,<br />

pseudo- and non-words. The second block contained videotaped single signs, pseudo-signs and non-verbal hand-<br />

/arm-movements and non-signs. The participants were instructed to hit a button when they identified a known<br />

sign or word.<br />

The stimuli were linguistically parallel in both tasks. We chose 60 sign-lexemes, representing objects, 30<br />

pseudo-signs and 30 non-signs. For the written material condition we presented 60 nouns, 30 pseudo-words and<br />

30 non-words. All signs and words consisted <strong>of</strong> a linguistically simple structure (no compounds) and represented<br />

high frequent nouns. The length <strong>of</strong> written words, pseudo- and non-words varied between four and nine letters.<br />

The stimuli were presented pseudorandomized in an event related design. Imaging is done with a Philips 1.5<br />

Tesla Gyruscan NT with standard bird-cage headcoil using a multishot T2* weighted gradient echo EPI<br />

sequence. Image analysis and statistical evaluation will be carried out using SPM2 &#61472;(Welcome<br />

Department <strong>of</strong> Cognitive Neurology).<br />

Preliminary Results:<br />

Data analysis is not yet finished. Inspection <strong>of</strong> nine deaf individuals demonstrates indeed activation <strong>of</strong> temporal<br />

regions with no activation <strong>of</strong> parietal cortex.


ICONIC SIGNS IN GERMAN SIGN LANGUAGE: AN FMRI-STUDY<br />

Juliane Klann (*#§), Frank Kastrau (*), Walter Huber (#)<br />

*: Interdisciplinary Centre <strong>of</strong> Clinical Research, University Hospital Aachen; #: Neurolinguistics at the Dept. <strong>of</strong><br />

Neurology, University Hospital Aachen; §: Dept. <strong>of</strong> <strong>Linguistic</strong>s, University <strong>of</strong> Cologne<br />

Introduction:<br />

Sign language differs from sound language respectively written language in its linguistic use <strong>of</strong> space and in<br />

iconicity (transparency). This leads to the assumption that the cerebral representation <strong>of</strong> sound/written and sign<br />

language does not completely overlap. This view is at variance with recent lesion data and imaging studies<br />

which show left localization <strong>of</strong> sign language in much the same way as for sound language. Therefore both<br />

language types might share the same neural substrate, thereby implying a supra-modal representation <strong>of</strong><br />

language functions in the brain [1-4].<br />

In order to pursue these issues further, we investigated the functional neuroanatomy <strong>of</strong> processing transparent<br />

and non-transparent signs conducting fMRI.<br />

Subjects:<br />

The participants were 11 prelingually deaf, age ranging from 22 to 43 years, with primary competence in<br />

German Sign Language (DGS = Deutsche Gebärden Sprache). The control-group consists <strong>of</strong> 11 hearing,<br />

matched for sex, age and education, with no competence in DGS. All subjects were right-handed.<br />

Methods:<br />

In order to prevent the application <strong>of</strong> conscious strategies the participants were not informed about the purpose<br />

<strong>of</strong> the study and their focus was directed to a lexical decision task. The detection <strong>of</strong> possible differences in the<br />

processing <strong>of</strong> transparent versus non-transparent signs was guaranteed through a systematic variation <strong>of</strong> the sign<br />

stimuli in respect to the degree <strong>of</strong> transparency.<br />

The stimuli were presented pseudo-randomized in an event related design. Imaging is done with a Philips 1.5<br />

Tesla Gyruscan NT with standard bird-cage head-coil using a multi-shot T2* weighted gradient echo EPI<br />

sequence. Image analysis and statistical evaluation will be carried out using SPM2 (Welcome Department <strong>of</strong><br />

Cognitive &#61472;Neurology).<br />

Results:<br />

In accordance with former empirical data and in disagreement with the expectations derived from linguistic<br />

differences, the activation patterns in the deaf participants show recruitment <strong>of</strong> the left hemisphere\'s temporal<br />

network, including Wernicke’s area for processing non-transparent as well as transparent signs. The network<br />

activated involves perisylvian areas within the superior temporal gyrus. Elsewhere this was interpreted as an<br />

recruitment <strong>of</strong> primary auditory cortex [5]. Contrary to expectations we found no activation <strong>of</strong> Broca\'s are in<br />

deaf participants. This area is consequently documented to be involved in sign language processing in deaf<br />

signers as well as in sound and written language processing in hearing non-signers [3]. Even in the present study<br />

our hearing participants activated Broca\'s area. Therefore the non-activation <strong>of</strong> this region in deaf subjects<br />

seems to mirror an modality- and task-specific effect.<br />

In the sign language task hearing non-signers show the expected bilateral activation within occipito-parietal<br />

regions.<br />

References:<br />

[1] Poizner G, Klima ES, Bellugi U: What the Hands Reveal about the Brain. Cambridge: MIT Press (1987) [2]<br />

Leischner A: Die Aphasie der Taubstummen. Ein Beitrag zur Lehre der Asymbolie. Arch. Psychiatr. Nervenkr<br />

1943 (115): 469-548 [3] Rönnberg J, Söderfeldt B, Risberg J: The cognitive neuroscience <strong>of</strong> signed language.<br />

Acta Psychologica 2000 (105): 237-254 [4] Klann J, Kastrau F, Kemény S, Huber W (2002): The<br />

Neuropsychology <strong>of</strong> signed and written language: an fMRI-study. Cortex 38: 874-877 [5] Finney EM, Fine I,<br />

Dobkins KR (2001): Visual stimuli activate auditory cortex in the deaf. Nature Neuroscience 4 (12): 1171-1173.


Preliminary analyses <strong>of</strong> the first patient data <strong>of</strong> a study on the relation between phonological<br />

input and output disorders in aphasia<br />

Julia Klitsch & Roelien Bastiaanse<br />

Rijksuniversiteit Groningen (RuG),<br />

Graduate School <strong>of</strong> Behavioral and Cognitive Neuroscience (BCN)<br />

Previous research on the (nature <strong>of</strong> the) relation between phonological input and output disorders in aphasia has<br />

been controversial. While some researchers assume that impairments in the two modalities are associated and cooccuring,<br />

others observed dissociating performance patterns in the two modalities.<br />

The research question <strong>of</strong> this project is if and how phonological input and output disorders are related. Are<br />

phonological disorders in one modality predictive <strong>of</strong> disorders in the other or are input and output dissociable?<br />

Another question is if there are phonetic features that are more detrimental to aphasic speech perception than<br />

others.<br />

To assess these questions, spontaneous speech is collected and the patients are administered a number perceptual<br />

tasks from the Dutch PALPA test battery (Bastiaanse, Bosje, & Visch-Brink, 1995) that tap different processing<br />

stages on the perceptual side <strong>of</strong> a Logogen-like model (Morton, 1968; Patterson, 1988): Auditory discrimination<br />

<strong>of</strong> words and non words, auditory lexical decision, auditory-written word matching, and auditory word-picture<br />

matching. Furthermore, expressive data are elicited with an oral naming task, using the target pictures <strong>of</strong> the<br />

auditory word-picture matching task as stimulus material, and with a repetition task. In the latter, the same words<br />

and non words have to be repeated which are also used in the auditory lexical decision task.<br />

Preliminary analyses <strong>of</strong> the data <strong>of</strong> the first four patients showed a lexical superiority effect in both auditory<br />

discrimination tasks, in auditory lexical decision, and in repetition, suggesting involvement <strong>of</strong> the lexical<br />

processing routes. A frequency effect could be observed in the repetition task only (&#967;2(1)=5.6, p


noise; the more severe the aphasia, the stronger the observed effect, as reflected by the performance patterns <strong>of</strong><br />

the two groups.<br />

With respect to the relation between phonological input and output disorders there is no clear evidence for<br />

neither point <strong>of</strong> view (association vs. dissociation) yet.


Age <strong>of</strong> acquisition and phonological neighbourhood affect two different recovery patterns from<br />

anomia: two case studies.<br />

Marina Laganaro, Marie Di Pietro and Armin Schnider<br />

Service de Reeducation, Geneva University Hospital<br />

Background: Although word-finding difficulties have been largely studied in aphasia from a theoretical and a<br />

rehabilitation point <strong>of</strong> view, recovery mechanisms are still not fully understood.<br />

Aims: In this study we investigated which psycholinguistic variables affect the word-finding recovery pattern<br />

during a computer assisted therapy in two anomic subjects (AH and PG).<br />

Study 1. Words and pictures (390) for baseline and post-test naming assessment were selected from Alario et al.<br />

(in press) and Bonin et al. (2002). The following variables were available for all the items: name agreement,<br />

image agreement, concept familiarity, image complexity, words age <strong>of</strong> acquisition (AoA), lexical frequency,<br />

word length, syllable token frequency, and phonological neighbourhood (PH-NEIGH). For each participant, two<br />

matched sets <strong>of</strong> 50 words from those they had failed to name at baseline were selected for therapy. Each set was<br />

trained successively during therapy with an unsupervised computer-assisted therapy. The program provided<br />

detailed information on which words were retrieved and which words needed a cue at each learning session.<br />

Despite the fact that AH and PG had a similar quantitative and qualitative anomic pattern at baseline with AoA<br />

affecting their naming performance, they showed quite different recovery patterns. The computer-assisted<br />

therapy was effective for both patients, but PG needed twice more sessions than AH to name 80%<strong>of</strong> the items<br />

without help. The psycholinguistic variables predicting the recovery curve differed between patients. AoA<br />

predicted recovery in AH, i.e. early-acquired words needed less item presentations. PH-NEIGH predicted<br />

recovery in PG, i.e. words with a higher phonological neighbourhood density and higher image agreement were<br />

recovered earlier.<br />

Study 2. Following the observation in study 1<strong>of</strong> a sublexical effect in recovery from anomia in PG, we analysed<br />

new words learning curve in PG and AH as well as in healthy controls. Twenty new words controlled for<br />

sublexical variables were associated to abstract drawings. Phonological neighbourhood predicted new words<br />

learning speed in controls and in anomic subjetcs, i.e. new words with many phonologically similar real words<br />

were learned easier than new words without phonologically similar words.<br />

Conclusion. Our results show two different patterns <strong>of</strong> recovery: the first one is affected by a lexical variable<br />

(AoA), the second one is affected by a sublexical variable, which also affects new words learning. We suggest<br />

that the effect <strong>of</strong> lexical variables (age <strong>of</strong> acquisition) reflects recovery from an impaired access to intact lexical<br />

representations, while an effect <strong>of</strong> a sub-lexical variable (phonological neighbourhood) on recovery reflects<br />

partial impairment <strong>of</strong> the lexical representation.


Introduction<br />

Effects <strong>of</strong> metrical and segmental cues on word retrieval in aphasia<br />

Antje Lorenz 1,2 , Wolfram Ziegler 1 , Ria De Bleser 2<br />

1 Clinical Neuropsychology Research Group (EKN), City Hospital Bogenhausen, Munich, Germany<br />

2 Institute for <strong>Linguistic</strong>s, Potsdam University, Potsdam, Germany<br />

According to current theories <strong>of</strong> speech production metrical and segmental information <strong>of</strong> the target word form<br />

play comparable roles in the generation <strong>of</strong> single words (Levelt et al., 1999). On these grounds the (pure)<br />

metrical structure <strong>of</strong> a target word can be expected to be an appropriate cue in anomia treatment. With regard to<br />

segmental cues considerable evidence has been provided in favor <strong>of</strong> a high (immediate) effectiveness <strong>of</strong> partial<br />

phonological information in several anomic patients (e.g. Best et al., 2002). Furthermore, the use <strong>of</strong> orthographic<br />

cues in the facilitation <strong>of</strong> picture naming produces strong effects in some patients (e.g. Best et al., 2002; Howard<br />

& Harding, 1998) but not in others (e.g. Bruce & Howard, 1988). Different assumptions have been made<br />

regarding the relationship between sublexical processing abilities for written materials and the effectiveness <strong>of</strong><br />

orthographic cues (e.g. Best et al., 2002; Howard & Harding, 1998). Several authors have pointed out a direct<br />

relation between preserved sublexical reading and effects <strong>of</strong> orthographic cues (e.g. Best et al., 2002) whereas<br />

others have found significant effects <strong>of</strong> orthographic cues in patients without sublexical transcoding abilities for<br />

written materials (e.g. Howard & Harding, 1998).<br />

Method<br />

In this study, the effectiveness <strong>of</strong> metrical and segmental prompting was examined in a picture naming task with<br />

ten aphasic patients. Severe word retrieval deficits formed a major symptom <strong>of</strong> each patient’s aphasia.<br />

Extensively low-pass filtered target words were used as metrical cues (Lorenz et al., 2000). In the segmental<br />

condition the immediate effectiveness <strong>of</strong> initial phonemes and initial graphemes were compared. Various<br />

background assessments, including lexical and sublexical processing <strong>of</strong> written and spoken materials as well as<br />

picture naming, were conducted with each patient. On these grounds the relationship between underlying<br />

functional deficit(s) in the patients and the effectiveness <strong>of</strong> specific types <strong>of</strong> word form specific information on<br />

word retrieval were analysed.<br />

The stimulus set consisted <strong>of</strong> 40 pictured objects. All target words were monomorphemic nouns with one, two,<br />

or three syllables.<br />

When a picture could not be named accurately within five seconds one type <strong>of</strong> cue was presented and the<br />

immediate effects on naming accuracy were investigated. With spontaneous correct responses the next picture<br />

was presented right away.<br />

In each run, half <strong>of</strong> the pictures were presented with metrical cues, the other half with segmental cues. Both<br />

phonemic and orthographic information was used as a segmental cue. Each picture appeared with each type <strong>of</strong><br />

cue in different runs. The combination <strong>of</strong> cue types and pictures was well balanced. Each picture was presented<br />

in randomized order once or twice per session. For each patient the results were cumulated over eight<br />

consecutive sessions.


Results<br />

TABLE 1<br />

Proportion <strong>of</strong> correct responses in different background assessments<br />

N-Items Subtests<br />

LEXICAL DECISION<br />

RA BR MH GE GG EB JK BF HW ZU<br />

80 auditory 83.8 96.3 86.3 93.8 91.3 92.5 97.5 97.5 93.8 98.8<br />

80 visual<br />

REPETITION<br />

86.3 88.8 80 73.8 87.5 96.3 97.5 90 88.8 96.3<br />

40 pseudowords 72.5 15 90 25 77.5 62.5 77.5 97.5 70 92.5<br />

40 words<br />

READING<br />

90 67.5 100 55 87.5 90 95 92.5 97.5 100<br />

20 letters nt nt 0 nt 10 80 95 90 5 15<br />

40 pseudowords 0 0 0 0 5 77.5 70 47.5 0 0<br />

40 words (regular)<br />

PICTURE-NAMING<br />

2.5 0 12.5 10 70 92.5 100 75 72.5 77.5<br />

240 spoken 1.25 10 17.1 15 52.1 47.9 12.5 55.4 34.6 29.2<br />

20 written 0 0 30 0 5 75 55 40 5 0<br />

nt = not tested<br />

Spoken picture naming was examined in a set <strong>of</strong> 240 pictured objects obtained from various sources. All other<br />

subtests were taken from LeMo (De Bleser et al., 1997).<br />

Figure 1: Proportion <strong>of</strong> (additional) correct responses after different types <strong>of</strong> word form related information<br />

Metrical cues were at least as effective as initial phoneme cues in eight patients. Only two patients pr<strong>of</strong>ited<br />

significantly more from initial phonemes than from the metrical structure <strong>of</strong> the target word (patients BF and<br />

ZU: p < .05; χ 2 -Test, two-tailed; cf. Figure 1).<br />

The effectiveness <strong>of</strong> initial phoneme cues correlated significantly with the ability to repeat pseudowords<br />

(Spearman-Rho, two-tailed: .65, p< .05) but not with the ability to repeat words (Spearman-Rho, two-tailed:<br />

.561, p = .09). Patients with less impairment in the repetition <strong>of</strong> pseudowords benefited most from initial<br />

phoneme cues. No significant correlations were obtained between repetition accuracies and the effectiveness <strong>of</strong><br />

initial grapheme cues or metrical cues.<br />

Initial grapheme cues affected word retrieval significantly in six patients. Only three <strong>of</strong> them were (partially)<br />

able to transcode written materials (pseudowords; letters) on a sublexical processing level (patients JK; EB; BF).<br />

The other three patients who had pr<strong>of</strong>ited from initial grapheme cues significantly were not able to name (or<br />

sound out) initial letters or to read pseudowords (GG; HW; ZU). For the whole group the effectiveness <strong>of</strong><br />

orthographic cueing correlated with lexical reading (Spearman-Rho, two-tailed: .71, p < .05), but not with


(sublexical) reading <strong>of</strong> pseudowords (Spearman-Rho, two-tailed: .349, p = .32). No significant correlations were<br />

obtained between reading accuracies and the effectiveness <strong>of</strong> initial phoneme cues or metrical cues. Furthermore,<br />

overall naming accuracy was not correlated with the effects <strong>of</strong> any type <strong>of</strong> cue.<br />

Main Conclusions<br />

i. Metrical cues were at least as effective as initial phoneme cues in most <strong>of</strong> the patients. These results are in<br />

line with current psycholinguistic theory which predicts comparable roles <strong>of</strong> metrical and segmental<br />

information in the generation <strong>of</strong> single words (Levelt et al., 1999).<br />

ii. Initial phoneme cues seem to be processed sublexically, since their effectiveness correlated with the<br />

repetition <strong>of</strong> pseudowords, but not with the repetition <strong>of</strong> words.<br />

iii. The effectiveness <strong>of</strong> initial grapheme cues correlated with lexical reading ability, but not with sublexical<br />

reading ability. This result contradicts the data from Best and colleagues (2002) and points to a directlexical<br />

mechanism <strong>of</strong> effectiveness <strong>of</strong> orthographic cues at least in some patients <strong>of</strong> this group. The<br />

implications for models <strong>of</strong> word production will be discussed.<br />

References<br />

Best, W., Herbert, R., Hickin, J., Osborne, F., Howard, D. (2002). Phonological and orthographic facilitation <strong>of</strong><br />

word d-retrieval in aphasia: immediate and delayed effects. Aphasiology, 16, 151-168.<br />

Bruce, C., Howard, D. (1988). Why don't Broca's aphasics cue themselves? An investigation <strong>of</strong> phonemic cueing<br />

and tip <strong>of</strong> the tongue information. Neuropsychologia, 26, 253-264.<br />

De Bleser, R., Cholewa, J., Stadie, N., & Tabatabaie, S. (1997) LeMo, an expert system for single case<br />

asessment <strong>of</strong> word processing impairments in aphasic patients. Neuropsychological Rehabilitation 7: 339-365.<br />

Howard, D., Harding, D. (1998). Self-cueing <strong>of</strong> word retrieval by a women with aphasia: why a letter board<br />

works. Aphasiology, 12, 399-420.<br />

Levelt, W.J.M., Roel<strong>of</strong>s, A., Meyer, A.S. (1999). A theory <strong>of</strong> lexical access in speech production. Behavioral<br />

and Brain <strong>Science</strong>s, 22, 1-38.<br />

Lorenz, A., Ziegler, W., Artinger, F., Zierdt, A. (2000). Metrical information as a cue in picture naming. Journal<br />

<strong>of</strong> Neurolinguistics, 13, 307-310.


DISCRIMINATION OF SIMILAR ENVIRONMENTAL SOUNDS FOLLOWING STROKE:<br />

LEFT HEMISPHERE PATIENTS FAIL TO USE SEMANTIC FACILITATION<br />

Alessandra LORENZI, Luigi A. Vignolo<br />

University <strong>of</strong> Brescia<br />

Auditory nonverbal agnosia (auditory agnosia sensu strictiori) consists in the selective inability to recognize<br />

nonverbal sounds. Carl Kleist (1928) maintained that the inability to perceive isolated sounds or noises<br />

(perceptive Geräuschtaubheit) should be distinguished from the inability to understand the meaning <strong>of</strong> noises<br />

(Geräuschsinntaubheit). Quantitative behavioural studies carried out since the 1960s (see Vignolo, 1982;<br />

Schnider et al., 1994) confirmed this dichotomy and investigated its anatomical bases. They led to define the<br />

existence <strong>of</strong> two types <strong>of</strong> auditory agnosia: an acoustic-discriminative one, preferentially associated with lesions<br />

<strong>of</strong> the right hemisphere and a semantic-associative one, specifically associated with lesions <strong>of</strong> the left<br />

hemisphere and aphasia. The former consists <strong>of</strong> imperception for the acoustic structure <strong>of</strong> sounds. The latter<br />

consists <strong>of</strong> defective recognition <strong>of</strong> the meaning <strong>of</strong> sounds and may be considered to be a cognitive rather than a<br />

perceptual disorder, involving one or several sensory modalities and consisting in the inability to put together<br />

different aspects <strong>of</strong> the same concept.<br />

The problem with all these studies was that acoustic discrimination and semantic recognition were investigated<br />

by tests involving different sensory modalities. Discrimination was tested by a purely auditory same/different<br />

test, while identification was tested by an auditory-visual multiple choice test. This difference made it difficult to<br />

compare results.<br />

The present study was undertaken in order to verify the right-left difference employing same/different<br />

discrimination tests strictly confined to the auditory modality. We wished to investigate the ability to<br />

discriminate pairs <strong>of</strong> acoustically similar environmental sounds, with or without semantic help. We assumed that<br />

the discrimination between two acoustically similar sounds should be facilitated when they originate from two<br />

different semantic sources ( e.g. miaowing cat– crying baby ) as opposed to when they come from two sources<br />

belonging to the same semantic group ( e.g. cat 1 – cat 2 ). In the first case the semantic difference adds to the<br />

acoustic difference in order to permit the discrimination, while in the second case no such facilitation is present.<br />

If this is true, patients with right hemisphere damage (who can identify the meaning <strong>of</strong> sounds) should be able to<br />

take advantage <strong>of</strong> the semantic help, like normal controls, while patients with left hemisphere damage (who have<br />

problems in identifying the meaning) should not be able to make good use <strong>of</strong> this help.<br />

A new test, the Environmental Sounds Discrimination Test, was administered to 20 controls and 12 unilateral<br />

hemispheric stroke patients (5 RBD [right brain damaged], 7 LBD [left brain damaged]) harbouring a small or<br />

medium sized lesion (diameter less than or equal to 3 cm) on the CT scan. Exclusion criteria were: a history <strong>of</strong><br />

hearing difficulties before stroke, multiple lesions, trauma, neurodegenerative diseases. The test consists <strong>of</strong> 40<br />

items, each made up <strong>of</strong> a pair <strong>of</strong> meaningful environmental sounds. 14 items are pairs <strong>of</strong> acoustically similar<br />

sounds, originating from different semantic sources (e.g. applause-tape-writer): they constitute Task 1. 14 items<br />

are pairs <strong>of</strong> acoustically similar sounds, originating from sources belonging to the same semantic category (e.g.<br />

thunder 1 – thunder 2; wind 1 – wind 2): they constitute Task 2. The remaining 12 items are pairs <strong>of</strong> identical<br />

sounds (e.g. hen-hen). The patient was told that he was going to hear two familiar noises one after the other. He<br />

was asked to listen to them carefully and to say whether they where the same or different.<br />

We expected that a. controls would perform both tasks well, but Task 1 (with semantic help) better than Task 2 (<br />

without semantic help ); b. RBD patients would perform both tasks much worse than the other groups but, like<br />

controls, Task 1 better than Task 2 (because both controls and RBD use the semantic help); c. LBD patients<br />

would perform both tasks better than RBD, without significant differences between Task 1 and Task 2 (being<br />

unable to use the semantic help).<br />

Results confirmed our expectations. The total number <strong>of</strong> errors made by RBD patients were double with respect<br />

to the LBD and more than triple with respect to controls. Both controls and RBD patients could easily<br />

discriminate among similar sounds originating from different semantic sources (Task 1). Virtually all errors<br />

made by these two groups concerned the discrimination <strong>of</strong> sounds produced by the same semantic source (Task<br />

2). This indicates that in both controls and right brain damaged, the semantic help makes acoustic<br />

discrimination significantly easier. By contrast, LBD patients were the only group in which a remarkable<br />

number <strong>of</strong> errors in Task 1 was found. This indicates, in our view, that semantic help is less efficient in LBD than<br />

in RBD and controls.<br />

In conclusion, this study, carried out with a test specifically confined to the acoustic sphere, provided further<br />

evidence <strong>of</strong> the semantic impairment typical <strong>of</strong> the left damaged subjects.


REFERENCES<br />

Kleist, C. (1928) Gehirnpathologische und lokalisatorische Ergebnisse über Hörstörungen, Geräuschtaubheiten<br />

und Amusien. Monatsschr Psychiat Neurol, 68: 853-860<br />

.<br />

Schnider A., Benson F.D., Alexander D.N., Schnider-Klaus A. (1994) Non-verbal environmental sound<br />

recognition after unilateral hemispheric stroke. Brain, 117:218-227.<br />

Vignolo L.A. (1982) Auditory agnosia. Phil Trans R Soc Lond Biol, 298:49-57


A Probabilistic Model <strong>of</strong> Functional Category Production in Agrammatic Narratives<br />

Lisa H. Milman 1 & 2, Michael Walsh Dickey 1,2 & Cynthia K. Thompson, 1,2,3<br />

<strong>Aphasia</strong> and Neurolinguistics Research Laboratory 1 Communication <strong>Science</strong>s and Disorders 2 and Neurology 3<br />

Northwestern University<br />

Introduction<br />

One account <strong>of</strong> agrammatism developed over the last decade posits that agrammatic errors reflect the<br />

hierarchical structure <strong>of</strong> syntactic trees. (Hagiwara, 1995; Friedmann, 2001). According to this hypothesis,<br />

accessibility to various functional projections is contingent on the relative severity <strong>of</strong> the agrammatism. Thus,<br />

the prediction is that in cases <strong>of</strong> mild agrammatism, only the highest level projection, CP, is affected. In more<br />

severe cases, however, more general impairments should be evident, affecting not only CP but lower projections<br />

as well. Results from several studies support these predictions for Japanese patients as well as for Hebrew &<br />

Arabic-speaking patients. Nonetheless, this account has been challenged since it does not account for all <strong>of</strong> the<br />

available data within and across languages (Reznik, 1995). It is worth noting that this criticism is not specific to<br />

this theory. In fact, the heterogeneity observed across patients has led to the much broader assertion that patient<br />

variability defies any general description (Miceli, Silveri, Romani, & Caramazza, 1989).<br />

The question addressed here is how to reconcile the fact that the hierarchical model may explain much <strong>of</strong> the<br />

data, yet, as might be expected given the variability observed in patient performance, not explain all <strong>of</strong> it. One<br />

possible solution tested here is to recast the question in probabilistic terms. Thus, given the hypothesis that the<br />

hierarchy <strong>of</strong> impairment observed in agrammatism reflects the structural properties <strong>of</strong> syntactic trees, we might<br />

predict the following two performance patterns (where 0 indicates impaired performance; and 1 indicates spared<br />

performance):<br />

CP – TP – AgrP – NegP – AspP – VP – V’ – XP<br />

(1) 0 1 1 1 1 1 1 1<br />

(2) 0 0 0 1 1 1 1 1<br />

However, given the variability in performance observed across patients, we might also expect to see patterns like<br />

(3) and (4):<br />

CP – TP – AgrP – NegP – AspP – VP – V’ – XP<br />

(3) 0 0 1 0 1 1 1 1<br />

(4) 1 1 1 1 0 0 0 0<br />

Although pattern (3) departs somewhat from expectations, overall it seems to approximately fit the model.<br />

Pattern (4) on the other hand, is exactly opposite <strong>of</strong> what we would expect based on the hypothesis. Evaluating<br />

the hierarchical structure hypothesis in a probabilistic framework makes it possible to distinguish between cases<br />

like (3) and (4). Thus the model accommodates some variability in the data, but importantly, statistically defines<br />

what this variability should like, if our model is in fact true. In order to evaluate the viability <strong>of</strong> reformulating<br />

the hierarchical structure hypothesis in probabilistic terms, two related research questions are addressed:<br />

1. Is the hierarchical ordering <strong>of</strong> impairment reported for Japanese, Hebrew, and Arabic-speaking<br />

agrammatic patients also evident in the performance pattern <strong>of</strong> English-speaking agrammatic patients?<br />

2. If this pattern is observed, can any observed variability be accounted for within the context <strong>of</strong> a<br />

probabilistic model?<br />

Methods<br />

Cinderella narratives were analyzed for 18 agrammatic patients. Each transcript was checked for the occurrence<br />

or omission <strong>of</strong> eight syntactic elements: C’, T’, Agr’, Neg’, Asp’, SpecVP, V’, and XP (where XP=any internal<br />

argument <strong>of</strong> the verb). Narratives in which at least two occurrences <strong>of</strong> a particular element were noted received<br />

a score <strong>of</strong> “1”; narratives in which there were no occurrences <strong>of</strong> a particular element were scored “0”.


These data then were analyzed using Item Response Theory (IRT) (Linacre, 2000). IRT is a probabilistic model<br />

used in the field <strong>of</strong> psychometrics to estimate the difficulty <strong>of</strong> test items. IRT was used here to provide a<br />

statistically valid estimate <strong>of</strong> difficulty for each <strong>of</strong> the syntactic projections, and to test whether the difficulty<br />

scores could adequately account for the variability observed in the performance patterns <strong>of</strong> each patient. The IRT<br />

analysis computes the likelihood that a subject with ability level x will be successful on an item <strong>of</strong> difficulty y.<br />

Essentially the model compares observed scores with predicted scores and calculates goodness <strong>of</strong> fit.<br />

Results<br />

Results <strong>of</strong> the IRT analysis are illustrated graphically in Figure 1. Mean square error (MSE) for all subjects and<br />

items was less than 2, which is considered acceptable (Linacre, 2000).<br />

Difficulty Score (Logits)<br />

6<br />

4<br />

2<br />

0<br />

-2<br />

-4<br />

C'<br />

T'<br />

AGR'<br />

Fig. 1. IRT difficulty scores for each functional projection<br />

NEG'<br />

ASP'<br />

VP V' XP<br />

Discussion<br />

In general, the hierarchical ordering <strong>of</strong> impairment previously reported for Japanese, Hebrew, and Arabicspeaking<br />

agrammatic patients was also found for the English-speaking patients in this study. However, when the<br />

performance pattern <strong>of</strong> individual patients was examined, there were six patients whose performance departed<br />

somewhat from the predictions <strong>of</strong> our model. For example, consider the response patterns <strong>of</strong> PR and HW:<br />

CP – TP – AgrP – NegP – AspP – VP – V’ – XP<br />

PR 0 0 1 0 1 1 1 1<br />

HW 0 0 1 1 0 1 1 1<br />

In spite <strong>of</strong> this variability, when the data were analyzed in terms <strong>of</strong> probabilities, the resulting difficulty<br />

estimates for each syntactic constituent were able to account for the performance pattern <strong>of</strong> all patients on all<br />

syntactic elements. Results <strong>of</strong> this study provide strong preliminary support for the use <strong>of</strong> probabilistic models,<br />

such as IRT, to identify consistent findings that are still based on individual performance patterns.<br />

References<br />

Friedmann, N. (2001). Agrammatism and the psychological reality <strong>of</strong> the syntactic tree.<br />

Journal <strong>of</strong> Psycholinguistic Research, 30 (1), 71-90.<br />

Hagiwara, H. (1995). The breakdown <strong>of</strong> functional categories and the economy <strong>of</strong><br />

derivation. Brain & Language, 50, 92-116.<br />

Linacre, J.M. & Wright, B.D. (2000). A user’s guide to Winsteps, Ministep, Bigsteps:<br />

Rasch Model Computer Programs. Chicago: Mesa Press.<br />

Miceli, G., Silveri, M., Romani, C., & Caramazza, A. 1989. Variation in the pattern <strong>of</strong>


omissions and substitutions <strong>of</strong> grammatical morphemes in the spontaneous speech <strong>of</strong><br />

so- called agrammatic patients. Brain and Language, 36, 447-492.<br />

Reznik, M. (1995). Functional categories in agrammatism. Brain & Language, 50,<br />

117-133.


Interpretable vs. uninterpretable features: evidence from six Greek-speaking agrammatic<br />

patients<br />

Vicky Nanousi, Jackie Masterson, Judit Druks, Martin Atkinson<br />

University <strong>of</strong> Essex<br />

Introduction<br />

The objective <strong>of</strong> the present study was to evaluate the claims <strong>of</strong> the Tree Pruning Hypothesis (TPH, Friedman &<br />

Grodzinsky, 1997) in the light <strong>of</strong> evidence derived from Greek-speaking agrammatic patients. The categories<br />

under investigation were tense, agreement and aspect features. According to the TPH the locus <strong>of</strong> the breakdown<br />

in agrammatism is the T node on the syntactic tree, and functional categories that are above it are impaired while<br />

those below it are spared. TPH was originally based on Hebrew, in which Tense is above Agreement (Ouhalla,<br />

1990). This organisation <strong>of</strong> the syntactic tree could account for the performance <strong>of</strong> Hebrew-speaking agrammatic<br />

patients whose production <strong>of</strong> tense features was impaired while agreement features were preserved. In Greek,<br />

the organisation <strong>of</strong> the syntactic tree is different: Agreement is thought to be above Tense, and Aspect is located<br />

low, closest to the stem (Horrocks, 1982; Belletti, 1990; Alexiadou, 1997). Therefore the prediction from the<br />

TPH for Greek agrammatic production would be that aspect and tense features are preserved, and agreement<br />

impaired. A second prediction, based on Friedman & Grodzinsky (1997), is that the dissociation between tense<br />

and agreement is confined to the production modality.<br />

The experiments tested the availability <strong>of</strong> functional categories using single word and sentential repetition,<br />

transformation and judgement tasks. Six Greek agrammatic patients with LIFG lesions following CVA<br />

participated in the study.<br />

Repetition tasks<br />

There were 90 single verb forms inflected for tense (simple present, simple past, past continuous, simple future<br />

and present perfect), aspect (imperfective, perfective and perfect) and agreement (three persons and two<br />

numbers), and 90 sentences with verbs inflected for the same features. The sentences were in S-V-O, V-O-S &<br />

V-S-O order and were presented for immediate and delayed repetition. There were no errors in the immediate,<br />

and very few errors in the delayed repetition.<br />

Production tasks eliciting tense, agreement and aspect in single words<br />

A trial consisted <strong>of</strong> an example verb illustrating the transformation in feature that was required, followed by five<br />

test verbs. The same five tenses that were explored in the repetition tasks were used here. For tense<br />

transformations agreement and aspect were held constant. During agreement transformations tense and aspect<br />

were held constant, and when person changes were required number was held constant and vice versa. Finally,<br />

for aspect transformations, tense and agreement were held constant.<br />

Production <strong>of</strong> tense, agreement and aspect within sentences<br />

Pairs <strong>of</strong> sentences were presented assessing tense and agreement. The first sentence contained a verb form<br />

inflected for tense and agreement while in the second sentence the verb was missing. In the second sentence the<br />

change required was indicated either by a temporal adverbial (for tense elicitation) or by an anaphoric pronoun,<br />

overt pronominal person (for agreement elicitation). The same tenses and agreement inflections examined in the<br />

previous tasks were used here. Aspect was tested in two tasks. For the first task there were sentence frames in<br />

which a verb was missing. Sentences were presented with a choice <strong>of</strong> verb forms each expressing the<br />

imperfective, perfective and perfect aspect. The correct choice was determined on the basis <strong>of</strong> an adverbial <strong>of</strong><br />

frequency. For the second task, the perfective and imperfective aspect were examined using triads <strong>of</strong> sentences.<br />

The first sentence contained a verb appropriate for the temporal adverbial while in the second and third sentence<br />

the verb form was omitted and the required change was indicated by a different temporal adverbial and adverbial<br />

<strong>of</strong> frequency.<br />

Results<br />

All three verbal features were equally impaired in the single word tasks, while in sentences tense and aspect were<br />

more impaired than agreement. Performance was better with the sentences than the single words, suggesting that<br />

a sentence frame facilitates the production <strong>of</strong> the verbal inflectional features.<br />

Grammaticality judgment tasks<br />

Three tasks were used. These were a free, a contrastive and a forced choice sentence completion task. In all three<br />

tasks there were violations in tense, agreement and aspect.


Results<br />

Agreement was better preserved and tense & aspect were equally impaired. The error rate was lower than that<br />

found in the production tasks.<br />

Discussion<br />

The Greek patients’ data provides evidence against the TPH, ins<strong>of</strong>ar that Tense and Aspect, that are lower in the<br />

Greek syntactic tree, were found to be better preserved than Agreement. Instead, the results are interpreted<br />

within recent formulations <strong>of</strong> Minimalism that distinguish between interpretable (tense, aspect) and<br />

uninterpretable (agreement) features and the morphophonological evaluation operations associated with them.<br />

Agree and its sub-process <strong>of</strong> copying deals with the morphophonological valuation <strong>of</strong> the uninterpretable φfeatures<br />

<strong>of</strong> verbs, and Spell-out and a similar sub-process <strong>of</strong> copying for the valuation <strong>of</strong> the interpretable<br />

features. The data show that either the patients are better at producing semantically empty material than material<br />

with semantic content, or that the operation <strong>of</strong> Agree functions better than Spell-out. At present our data cannot<br />

distinguish between these two possibilities. Better performance in sentences than in single words is explained by<br />

arguing that in processing sentences a syntactic frame for the verb is readily available, whereas in single verb<br />

production, the syntactic frame has to be created by ‘projecting’ a sentence frame for the target word. Since the<br />

patients have problems with morphosyntactic representations and/or the relevant operations, they cannot perform<br />

the virtual projection, and this is why the production <strong>of</strong> inflected single verbs is more impaired than that <strong>of</strong> verbs<br />

incorporated into sentences. Finally, our results also conflict with the claim <strong>of</strong> Friedman & Grodzinsky that the<br />

tense deficit is apparent only in production, since the patients exhibited impaired performance, although to a<br />

lesser degree than in production, in grammaticality judgement tasks too.<br />

In conclusion, two intuitively unexpected results were observed in the present study, the first is that features<br />

devoid <strong>of</strong> semantic content are better preserved than semantically meaningful features, and the second is that<br />

performance with sentences is better than with single words.<br />

References<br />

Alexiadou, A.,1997. On the properties <strong>of</strong> some Greek word order patterns. In Alexiadou, A.,<br />

Horrocks, G. and Stavrou, M. (eds). Studies in Greek syntax, Kluwer, Dordrecht.<br />

Belletti, A. 1990. Generalised verb movement. Torino: Rosenberg and Sellier.<br />

Friedmann, N & Grodzinsky, Y. 1997. Tense and agreement in agrammatic production:<br />

pruning the syntactic tree. Brain and Language, 56, 397-425.<br />

Horrocks, J. 1982. The order <strong>of</strong> constituents in MG. In Gazdar, G., Pullum, J. and Klein, E.<br />

(eds.). Order, concord and constituency. Dordrecht: Foris, 95-111.<br />

Lightfoot, D. 1981. Explaining syntactic change. In Hornstein, N. and Lightfoot, D. (eds.).<br />

Explanation in <strong>Linguistic</strong>s. London: Longman.<br />

Ouhalla, J. 1990. Functional categories, agrammatism and language acquisition. Ms. Queen<br />

Mary and Westfield College, London University.


Production and Comprehension <strong>of</strong> wh-questions<br />

in German Broca's aphasia<br />

Eva Neuhaus & Martina Penke<br />

Heinrich-Heine-University Duesseldorf<br />

Introduction<br />

A long standing issue in the investigation <strong>of</strong> agrammatism is whether the agrammatic deficit is due to an<br />

impairment <strong>of</strong> syntactic competence that affects comprehension and production in parallel, or whether<br />

comprehension and production are affected by independent disorders. We will tackle this issue by investigating<br />

wh-question production and comprehension in German agrammatic Broca’s aphasics. Wh-questions are a good<br />

test case since (1) they are dealt with in recent theories on agrammatic production and comprehension and (2)<br />

they can be easily tested in both modalities.<br />

For agrammatic speech production, Friedmann and Grodzinsky have advocated the “Tree pruning Hypothesis”<br />

(TPH; Friedmann & Grodzinsky 1997, Friedmann 2002) according to which the agrammatic deficit causes a<br />

“pruning” <strong>of</strong> the syntactic tree minimally resulting in the loss <strong>of</strong> the CP layer which is critical for the formation<br />

<strong>of</strong> wh-questions. This proposal predicts that agrammatic aphasics are not able to produce complete wh-questions<br />

with a wh-phrase in SpecCP and a finite verb in the COMP position.<br />

Concerning language comprehension Grodzinsky (1990, 2000) has proposed that the agrammatic deficit leads to<br />

the deletion <strong>of</strong> movement traces in syntactically derived sentences. According to his proposal aphasic subjects<br />

are impaired in the comprehension <strong>of</strong> wh-object questions because the object theta role cannot be assigned to the<br />

moved object due to deletion <strong>of</strong> the trace between the base-generated and the derived object position. Via a<br />

default strategy, the thematic role ‘agent’ is then assigned to the moved object.<br />

According to these two approaches the deficits in language production and comprehension are caused by two<br />

distinct disorders and are thus not parallel. A deficit affecting grammatical competence, such as the loss <strong>of</strong><br />

functional categories proposed by e.g. Ouhalla (1993), would in contrast predict a parallel impairment in the<br />

production and comprehension <strong>of</strong> wh-questions.<br />

Method<br />

We present results from three experiments testing the production and comprehension <strong>of</strong> wh-questions in nine<br />

agrammatic German Broca's aphasics.<br />

In an elicitation task, subjects had to transform a given main clause in which one information was replaced by a<br />

non-specific indefinite term into a wh-question (1). For each subject, 42 argument questions (subject and object<br />

questions) and 12 adjunct questions were tested. In a repetition task, subjects were asked to repeat an auditorily<br />

presented wh-question as accurately as possible (2). 20 argument questions (subject and direct object) and 10<br />

adjunct questions were tested in this experiment.<br />

(1) Petra hat jemanden gesehen. (“P. has seen somebody”)<br />

Klaus fragt:______________? (“K. asks:___________?”)<br />

target: Wen hast du gesehen? (“whom have you seen?”)<br />

(2) Wo versteckt er den Schatz? (“where does he hide the treasure?”)<br />

In the comprehension task, subjects saw pictures depicting semantically reversible actions performed by two <strong>of</strong><br />

three persons. In the following example a man brushes a woman who in turn brushes a man. Subjects were then<br />

asked to answer a wh-argument-question such as Wer bürstet die Frau? (“who brushes the woman?”) by<br />

pointing to the corresponding person in the picture (3).<br />

(3)<br />

60 wh-questions (30 wh-subject and 30 wh-object questions) were presented to each subject. Questions were<br />

formulated such that each <strong>of</strong> the three persons (A, B, C) was the correct target in one third <strong>of</strong> the items.


Results and discussion<br />

The following table presents an overview <strong>of</strong> the correct reactions in these three experiments.<br />

In the elicitation task we counted all wh-questions as correct that were introduced by a wh-pronoun and<br />

contained a finite verb placed in V2 position. In the repetition task a wh-question counted as "correct" if it was<br />

accurately repeated.<br />

Correctness scores in %<br />

subjects<br />

production comprehension<br />

elicitation repetition picture pointing<br />

M.B. 51/54(94.4%) 30/30 (100%) 50/60 (83.3%)<br />

G.B. 54/54 (100%) 21/30 (70%) 54/60 (90%)<br />

I.K. 54/54(100%) 30/30 (100%) 26/60 (43.3%)<br />

R.M. 47/54 (87%) 25/30 (83.3%) 15/60 (25%)<br />

W.R. 50/54 (92.6%) 21/30 (70%) 26/60 (43.3%)<br />

W.W. 48/54 (88.9%) 18/30 (60%) 23/60 (38.3%)<br />

P.B. 40/54(74.1%) 5/30 (16.7%) 19/60 (31.7%)<br />

M.J. - 29/30 (96.7%) 32/60 (53.3%)<br />

E.S. 13/54 (24.1%) - 46/60 (76.7%)<br />

∑ 357/432 (82.6%) 179/240 (74.6) 291/540 (53.9%)<br />

As can be seen in the table, the performance <strong>of</strong> two <strong>of</strong> our aphasic subjects (M.B. and G.B.) was unimpaired both<br />

in comprehension and production. The majority <strong>of</strong> our subjects (I.K. to P.B.) generally show a good performance<br />

in the two production tasks, whereas their performance in the comprehension task was only at chance level. Only<br />

subject E.S. displays the opposite pattern i.e. above chance performance in comprehension and a severe disorder<br />

in wh-question production.<br />

These finding suggest that<br />

1. wh-question production is generally not impaired in German agrammatism. This provides evidence that<br />

the CP layer can still be projected in German agrammatism – contrary to the assumptions <strong>of</strong> the “Tree<br />

Pruning Hypothesis”.<br />

2. comprehension problems such as predicted by Grodzinsky’s trace deletion account cannot be observed<br />

in every agrammatic aphasic (see M.B. and G.B.); however<br />

3. deficits in wh-question comprehension are common. A closer analysis <strong>of</strong> the error patterns reveals<br />

different error patterns in our subjects. Whereas the results for subject E.S. are in line with<br />

Grodzinsky’s most recent proposal according to which the agrammatic deficit only affects which N<br />

object questions but not who-questions, the data <strong>of</strong> I.K. provides evidence for the classical tracedeletion<br />

account according to which all wh-object questions are impaired whereas wh-subject questions<br />

are not.<br />

4. production and comprehension are not affected in parallel. This suggests that agrammatism is not due to<br />

a deficit in syntactic competence leading to the loss <strong>of</strong> all or some functional projections. However,<br />

both in comprehension and in production, we find a clear asymmetry between wh-subject and wh-object<br />

questions: wh-object questions are more difficult to produce and understand than wh-subject questions.<br />

This indicates that the canonical linear order <strong>of</strong> arguments in sentence structure is a crucial factor<br />

determining the performance <strong>of</strong> agrammatic aphasics.<br />

References<br />

Friedmann, N. & Y. Grodzinsky (1997). Tense and agreement in agrammatic production: Pruning the syntactic<br />

tree. Brain and Language, 56, 397-425.<br />

Friedmann, N. (2002). Question production in agrammatism: the tree pruning hypothesis. Brain and Language,<br />

80(2), 160-187.<br />

Grodzinsky, Y. (1990). Theoretical perspectives on language deficits. London: MIT Press.<br />

Grodzinsky, Y. (2000). The neurology <strong>of</strong> syntax. Behavioral and Brain <strong>Science</strong>s, 23(1), 1-71.<br />

Ouhalla, J. (1993). Functional categories, agrammatism and language acquisition. Linguistische Berichte, 143, 3-<br />

36.


Syntactic Impairments in Persian<br />

Reza Nilipour<br />

University <strong>of</strong> Welfare and Rehabilitation <strong>Science</strong>s<br />

And<br />

School <strong>of</strong> Cognitive <strong>Science</strong>s (IPM), Tehran, Iran.<br />

Abstract<br />

This paper presents clinical syntactic impairments in adult native speakers <strong>of</strong> Persian subsequent to brain<br />

lesion. Persian is introduced as an Indo- European language, belonging to the Iranian branch <strong>of</strong> the Indo-Iranian<br />

group. Typologically, it is an SOV language with a rather rich morphology. It is an atypical SOV language with<br />

a rather loose syntax.<br />

The source <strong>of</strong> the presented syntactic violations <strong>of</strong> Persian is from two groups <strong>of</strong> aphasics and two different<br />

etiologies. The patients include both mono-lingual as well as bilingual native speakers <strong>of</strong> Persian with different<br />

site and size <strong>of</strong> lesions and the etiologies include both CVA and trauma.<br />

The agrammatic aphasics and their syntactic violations in Persian are based on systematic assessments with<br />

the same standard aphasia test (The BAT, 1987). The pathological data are extracted from syntactic sub-tests as<br />

well as different propositional connected speech samples.<br />

The presented grammatical violations are compared with the subject control data as well as cross-linguistic<br />

data. The syntactic analysis <strong>of</strong> the clinical data is based on the descriptive framework <strong>of</strong> the CLAS ( Menn &<br />

Obler, 1990).<br />

The data on Persian syntactic impairments are characterized into two major groups; general syntactic<br />

impairmments versus language-specific violations.<br />

The general syntactic violations include evidence <strong>of</strong> breakdown <strong>of</strong> VP and /or NP structure, substitution or<br />

deletion <strong>of</strong> grammatical morphems and simplification <strong>of</strong> syntax.<br />

In the domain <strong>of</strong> language–specific syntactic violations, three major groups <strong>of</strong> syntactic violations are<br />

discussed:<br />

Tendency towards substitution <strong>of</strong> infinitive or its truncated form for the proper inflected form <strong>of</strong> the verb<br />

substitution <strong>of</strong> a filler verb (to be) for all sorts <strong>of</strong> verbs, including transitive verbs<br />

tendency to omit NP or VP internal linking elements.


Reading strategies in a case <strong>of</strong> pure alexia: Evidence from word length<br />

Papathanasiou Ilias, Kavvada Aimilia,<br />

Department <strong>of</strong> Speech and Language Therapy, Technological Educational Institute Patras, Greece Konstantinou<br />

Demetrios Department <strong>of</strong> Neurosurgery, Medical School, University <strong>of</strong> Patras, Greece<br />

Pure alexia is an acquired reading disorder that occurs secondary to a lesion in the left occipitotemporal junction.<br />

Pure alexia is referred as an inability to identify all the letters <strong>of</strong> a word as a single unit and to access the<br />

orthographic lexicon (Hillis, 2002). Patients with pure alexia do not have a problem <strong>of</strong> a purely perceptual<br />

nature. That is, single written letters are perceived and read properly. Therefore, they <strong>of</strong>ten spontaneously<br />

compensate for their deficit by naming each letter <strong>of</strong> the word aloud or silently, which allows them to recognize<br />

the word. Their strategy forms the distinctive feature <strong>of</strong> this deficit which is a word- length effect; the naming<br />

latencies <strong>of</strong> patients increase dramatically with increasing numbers <strong>of</strong> letters in the word. However, the<br />

commonest deficit associated with pure alexia is a right homonymous field defect; an impairment that may, by<br />

itself, interfere with single-word reading because <strong>of</strong> inability to see the letters towards the end <strong>of</strong> a word.<br />

Case History: A 42-year-old right-handed woman, XO who is a high school English teacher suffered two<br />

separate episodes <strong>of</strong> leukoencephalitis during the last five years. Two years prior to this study, an MRI had<br />

shown a remaining proencephalic cyst in the left occipital lobe. Language and reading were described as normal<br />

prior to those two episodes. She was an avid reader, both pr<strong>of</strong>essionally and for pleasure. She was referred to us<br />

by her neurosurgeon.<br />

Assessment: XO presented a complete right hemianopia. For the initial language evaluation, the Boston<br />

Diagnostic <strong>Aphasia</strong> Examination was used which revealed a mild pure alexia and no aphasia.<br />

For further assessment <strong>of</strong> XO&#8217;s orthographic processing abilities a non-standardized test was used. This<br />

involved reading aloud, spelling and recognizing orally spelled words tasks that varied along two parameters;<br />

length and frequency, as well as pseudowords. Specifically, the test contained 80 nouns, which were controlled<br />

for frequency and length , and 40 pseudowords based on these nouns. The selected words and the pseudowords<br />

were chosen to have the same visual outline. In order to rule out the possibility that her right hemianopia was<br />

responsible for her reading errors, all stimuli were four and five letters long, so the subject was able to read most<br />

<strong>of</strong> the single-word presentations without having to make a rightward saccade. This task was also administered to<br />

a normal age-, sex- and educational level- matched control subject. XO was recorded while reading. Single-<br />

word reading speeds were measured through the Nero Burning Rom program. Statistical analysis was performed<br />

using Micrososft Excell programme.<br />

Results: In comparison with the control data, XO demonstrated no word frequency effect during reading.<br />

However, there was a significant difference in latency <strong>of</strong> reading between four letter and five letter words, as<br />

well as between real words and pseudo words with the same letter length. During the assessment, XO was<br />

tending to make educated guesses after she had identified the first few letters <strong>of</strong> a word and therefore her<br />

response time was increasing.<br />

Discussion: This case demonstrated that in pure alexia, reading is not only influenced by letter length but also<br />

there are lexicality effects as she is reading real words better than pseudowords. Friedman et al (2000), has also<br />

reported these lexicality effects as a result <strong>of</strong> word frequency. However our case has clearly demonstrated no<br />

word frequency effect. Our findings are important in understanding the nature <strong>of</strong> the reading strategies used by<br />

cases <strong>of</strong> pure alexia.<br />

References<br />

Hillis (2002) : The handbook <strong>of</strong> adult language disorders, Psychology Press, New York<br />

Friedman R & Lott SN (2000): Rapid word identification in pure alexia is lexical bt not semantic. Brain &<br />

language, 72(3), 219-227


The neural processing <strong>of</strong> naming nouns and verbs with special reference to<br />

age-<strong>of</strong>-acquisition. An event-related fMRI study.<br />

Jenny Postler 1 , Ria De Bleser 1 , Christina Kauschke 2 , Simone Reinders 3,4 ,<br />

Cornelius Weiller 3 & Christian Büchel 3<br />

1 University <strong>of</strong> Potsdam, Department <strong>of</strong> Cognitive Neurolinguistics<br />

2 Free University <strong>of</strong> Berlin, Department <strong>of</strong> General and German <strong>Linguistic</strong>s<br />

3 University <strong>of</strong> Hamburg, Department <strong>of</strong> Neurology<br />

4 Groningen University Hospital, Department <strong>of</strong> Psychiatry<br />

Abstract<br />

Introduction. The neural representation and processing <strong>of</strong> nouns and verbs is currently a controversially<br />

discussed issue in neurolinguistics. The assumption that there are different neural representations for nouns and<br />

verbs arose from lesion studies with word class specific impaired patients. These studies suggested that noun<br />

processing is associated with temporal lobe lesions whereas verb processing is linked to left frontal lobe lesions<br />

(Druks, 2002 for a review). Recent neuroimaging studies could not consistently confirm these findings (Perani et<br />

al. 1999; Sörös et al. 2003; Tyler et al. 2001, 2003, 2004; Warburton et al. 1996). Although selective<br />

impairments in noun and verb processing <strong>of</strong>ten occure in naming tasks, only one MEG study (Sörös et al. 2003)<br />

used a naming paradigm to verify the putative anterior-posterior dissociation between noun and verb processing.<br />

The authors found a similar neuronal network underlying noun and verb retrieval.<br />

Picture naming is always influenced by a variety <strong>of</strong> linguistic and visual parameters. Recent behavioral studies<br />

emphasize the influence <strong>of</strong> age-<strong>of</strong>-acquisition on word processing in particular for object naming (Morrison et al.<br />

1992). This observation could lately be confirmed in an fMRI study by Fiebach et al. (2003) for auditory and<br />

visual lexical decisions on nouns.<br />

In the present study, we used event-related fMRI to investigate the neural processing <strong>of</strong> German nouns and verbs<br />

with a picture naming paradigm. The aim <strong>of</strong> the study was first to test the anterior-posterior dissociation between<br />

noun and verb processing. Second we examined the influence <strong>of</strong> age-<strong>of</strong>-acquisition (AoA) on naming.<br />

Methods. We used concrete nouns and verbs presented as black-white line drawings (De Bleser & Kauschke,<br />

2002). Nouns were counterbalanced between animate and inanimate items, verbs between transitive and<br />

intransitive forms. The word classes were matched for frequency, productive age <strong>of</strong> acquisition (according to a<br />

parents survey, De Bleser & Kauschke, 2003), visual complexity and name agreement. In addition a control<br />

condition was developed consisting <strong>of</strong> scrambled images <strong>of</strong> the original noun and verb pictures in order to<br />

control for visual processing and motor activation.<br />

18 subjects (9 female) participated in the study. They were instructed to name noun and verb pictures internally<br />

and react with "ok" in the case <strong>of</strong> scrambled pictures. Simultaneously they had to press a button with the left<br />

hand. To ensure adequate performance all subjects were intensively instructed and trained prior to the fMRI<br />

scanning. Name agreement was examined after the fMRI scanning with a written naming task.<br />

Data acquisition. Functional images were acquired with a Siemens Symphony 1.5 Tesla scanner using a T2*<br />

sensitive gradient-echo echo-planar sequence (32 axial slices; 1 mm gap; voxel size 3 x 3 x 3 mm; TR 2.56 s;<br />

TE 40 ms; flip angle 90°; FOV 19.2 cm; matrix 64 x 64 voxels). The data analyses were performed with SPM2.<br />

Functional data were preprocessed including correction for slice timing delays and motion artifacts,<br />

normalization to a standard stereotactic space and smoothing with a Gaussian kernel <strong>of</strong> 12 mm FWHM for group<br />

analysis.<br />

Data analysis. The subject specific data sets were analysed with a factorial-parametric statistical model<br />

containing the conditions: nouns, verbs, scrambled nouns, scrambled verbs and age-<strong>of</strong>-acquisition for nouns and<br />

verbs, respectively. Age <strong>of</strong> acquisition was modeled as a parametric regressor. On the second level noun and<br />

verb differences were analysed using within-subjects Anova. Age-<strong>of</strong>-acquisition effects on naming were tested<br />

with a one-sample T-Test. Four Regions <strong>of</strong> interest were defined to identify AoA effects: the left inferior frontal<br />

cortex including Broca's area (LIPC), the left superior temporal gyrus including Wernicke's area, the left<br />

angular/supramarginal gyrus and left basal temporal gyrus (BTLA). Data were considered to be significant at a<br />

statistical level <strong>of</strong> p < .05 (corrected for multiple comparisons).<br />

Behavioral results. The mean reaction time for naming nouns (602.85 ms) and verbs (665.24 ms) differed<br />

significantly (Anova F(1,51) = 72.09; p < .000, post hoc Scheffè test p < .000) whereas no significant differences


were found between the control conditions (post hoc Scheffè p = .52). Name agreement was comparable between<br />

grammatical categories (nouns: 92.88 % correct; verbs 91.41% correct; Anova F(1,17) = 2.26; p < .12).<br />

fMRI results. The comparison <strong>of</strong> each word category with the corresponding control condition resulted in a<br />

similar activation pattern. In both contrasts we found activation <strong>of</strong> the LIPC, the fusiform gyrus and the dorsal<br />

frontal gyrus bilaterally. Further activation was observed in the temporo-occipital region up to superior parietal<br />

areas in both hemispheres. Naming verbs relative to nouns identified activation in the left inferior frontal gyrus<br />

and bilaterally in the temporo-occipital region, in the fusiform gyrus and in the inferior parietal sulcus. The<br />

reverse contrast showed no significant voxels.<br />

Increasing signal for the naming <strong>of</strong> late learned words was detected in the LIPC (BA 47) and the left BTLA (BA<br />

37). There were no suprathreshold voxels for the naming <strong>of</strong> early learned words, however subthreshold<br />

activation indicates participation <strong>of</strong> the precuneus (BA 7).<br />

Discussion. We found a very similar activation pattern for the retrieval <strong>of</strong> nouns and verbs, although verbs<br />

produced a significantly stronger hemodynamic response. Thus, our data do not support the anterior - posterior<br />

dissociation between noun and verb processing but rather suggest similar neuronal processing mechanisms for<br />

the retrieval <strong>of</strong> these word classes. Furthermore, we demonstrated that the hemodynamic signal for naming<br />

nouns and verbs is modulated by age-<strong>of</strong>-acquisition. Later learned words causes more activation in areas which<br />

are associated with semantic processing (LIPC BA 47) and with lexical retrieval (BTLA BA 37), thus indicating<br />

stronger effort in lexico-semantic retrieval for these words.<br />

References<br />

De Bleser & Kauschke (2003). Acquisition and loss <strong>of</strong> nouns and verbs: parallel or divergent patterns?<br />

Journal <strong>of</strong> Neurolinguistics, 16, 213-229<br />

Druks (2002). Verbs and nouns - a review <strong>of</strong> the literature. Journal <strong>of</strong> Neurolinguistics, 15, 289-315.<br />

Fiebach et al. (2003). Distinct brain representations for early and late learned words. Neuroimage, 19, 1627-1637.<br />

Morrison et al. (1992). Age <strong>of</strong> acquisition, not word frequency, affects object naming, not object recognition.<br />

Memory & Cognition, 20, 705-714.<br />

Perani et al. (1999). The neural correlates <strong>of</strong> verb and noun processing. A PET study. Brain, 122, 2337-2344.<br />

Sörös et al. (2003). Naming action and objects: cortical dynamics in healthy adults and in an anomic patient with a dissociation in<br />

action/object naming. Neuroimage, 19, 1787-1801.<br />

Tyler et al. (2001). The neural representation <strong>of</strong> nouns and verbs: PET studies. Brain, 124, 1619-1634.<br />

Tyler et al. (2003). Objects and their actions: evidence for a neurally distributed semantic system. Neuroimage, 18, 542-557.<br />

Tyler et al. (2004). Neural processing <strong>of</strong> nouns and verbs: the role <strong>of</strong> inflectional morphology. Neuropsychologia, 42, 512-523.<br />

Warburton et al. (1996). Noun and verb retrieval by normal subjects. Studies with PET. Brain, 119, 159-179.


CONTEXTUAL PRIMING IN SEMANTIC ANOMIA: A CASE STUDY<br />

K. Renvall 1 , M. Laine 2 , N. Martin 3<br />

1 Department <strong>of</strong> Psychology, University <strong>of</strong> Turku, Finland<br />

2 Department <strong>of</strong> Psychology, Åbo Akademi University, Finland<br />

3 Center for Cognitive Neuroscience, Temple University School <strong>of</strong> Medicine, USA<br />

Introduction<br />

Contextual priming was developed as a procedure to manipulate aphasic naming by contextual relationships<br />

(semantic, phonological, unrelated) and by intensive repetition priming (Laine & Martin, 1996; Martin & Laine,<br />

2000). The first case studies cited above indicated that contextual priming has at least short-term facilitative<br />

effects on target naming and suggested an interaction between the patient's functional deficit and the naming<br />

context. Since then several additional studies have explored the effects <strong>of</strong> contextual priming. In the first fullscale<br />

treatment study (Renvall et al., 2003) we found generalisation <strong>of</strong> the treatment effects in the semantic<br />

context and also documented a longer-term treatment effect than in the previous studies. In the facilitation study<br />

<strong>of</strong> Martin, Fink, Laine & Ayala (in press) in which 11 aphasics were tested an immediate interference effect but<br />

short-term facilitation was found. The current suggestion is that the contextual priming procedure is most<br />

effective when semantic processing <strong>of</strong> words is relatively spared (Martin, Fink & Laine, in press). The present<br />

case study explores further this suggestion by conducting a treatment study with one Finnish-speaking aphasic<br />

suffering from semantic anomia.<br />

Method<br />

PH is a 73-year-old right-handed male who suffered from a vast left arteria cerebri media infarction (affecting<br />

nucleus lentiformis and the periventricular white matter) and subsequent right-sided hemiparesis over 2 years<br />

prior to this study. Spontaneous speech is fluent but rambling and lacking in content due to constant problems in<br />

word retrieval. In the formal background testing PH exhibits a moderate naming difficulty with semantic errors,<br />

circumlocutions and nonwords while repetition and oral reading is intact. In tasks tapping lexical-semantic<br />

processing <strong>of</strong> words PH has difficulties in distinguishing between close semantic relatives although the access to<br />

the approximate semantic domain is <strong>of</strong>ten successful. These results suggest that the primary source <strong>of</strong> PH's<br />

word-finding difficulty is at the semantic level.<br />

The treatment design included 3 baseline naming measurements, 12 treatment sessions (carried out within 5<br />

weeks), 2 post-treatment naming measurements right after the treatment period, and 1 follow-up measurement<br />

1.5 months after the treatment had been finished. The stimuli used in the naming measurements included 120<br />

hard-to-name items (60 to-be-trained and 60 untrained control pictures), and 30 easy-to-name items. The trained<br />

items were selected so that they formed 15 picture sets (4 pictures in each) where the items were either unrelated,<br />

semantically related or phonologically related to each other (5 picture sets for each relatedness condition). The<br />

picture sets were cycled so that each picture set was treated in 9 treatment sessions. The training protocol<br />

included repeated cycles <strong>of</strong> spontaneous naming attempts and repetition <strong>of</strong> the target names after the examiner<br />

(see Martin & Laine, 2000).<br />

Results and Discussion<br />

McNemar tests <strong>of</strong> change were used to analyse the naming success before and after treatment. They revealed that<br />

there was a significant change in the naming success on the trained items between the third baseline<br />

measurement (3/60 correct) and the first post-treatment measurement (18/60 correct; McNemar test with<br />

continuity correction, χ 2 = 11.53, df=1, p< .0001) and also between the third baseline measurement and the<br />

second post-treatment measurement (14/60 correct; McNemar test with continuity correction, χ 2 =7.69, df=1, p<<br />

.001). However, no change was anymore observed in the trained items when the third baseline measurement was<br />

compared with the follow-up measurement administered 1,5 months after the treatment (8/60 correct). In the<br />

control items, no change was observed in any <strong>of</strong> the measurements. Thus, the improvement in naming the trained<br />

items was only short-lived. Interestingly, when the conditions were analysed separately, the semantic condition<br />

was the only condition in which we found significant improvement in naming the trained items. This occurred<br />

between the third baseline measurement (0/20 correct) and the first post-treatment measurement (McNemar's<br />

test with the continuity correction, χ 2 =5.14, df=1, p< .05). This indicates that the treatment had some temporary<br />

benefit for PH.


With regard to word-level errors during treatment, PH produced lots <strong>of</strong> contextual word errors (names <strong>of</strong> other<br />

items in the same picture set) and non-contextual word errors (words that are not included in the picture set but<br />

hold a semantic or phonological relation to the target). Contextual word errors appeared in all conditions but half<br />

<strong>of</strong> the errors occurred in the semantic condition (semantic 79, phonological 33, unrelated 28) indicating<br />

immediate interference at the level <strong>of</strong> his deficit. This finding is consistent with that <strong>of</strong> Martin, Fink, Laine &<br />

Ayala (in press). The great number <strong>of</strong> semantically related non-contextual word errors (89/112; in the semantic<br />

condition 28 errors, in the phonological condition 34 errors, in the unrelated condition 50 errors) is also<br />

consistent with prior studies, e.g., Martin et al. (1989), and not surprising as PH made many semantic errors in<br />

spontaneous speech and in different naming tasks administered before treatment. The possible changes in the<br />

distribution <strong>of</strong> the naming error types during the 6 naming measurements are yet to be analysed.<br />

In summary, the present results provide support to the claim that contextual priming might not show longstanding<br />

beneficial effects in aphasics who have a lexical-semantic impairment (Martin, Fink & Laine, in press).<br />

Research is underway to combine contextual priming with methods that would provide item-specific semantic<br />

support for semantic anomia patients.<br />

References<br />

Laine, M. & Martin, N. (1996) Lexical retrieval deficit in picture naming: implications for word production<br />

models. Brain and Language, 53, 283-314.<br />

Martin, N., Fink, R. & Laine, M. (in press) Treatment <strong>of</strong> word retrieval deficits with contextual priming.<br />

Aphasiology.<br />

Martin, N., Fink, R., Laine, M. & Ayala, J. (in press) Immediate and short-term effects <strong>of</strong> contextual<br />

priming on word retrieval in aphasia. Aphasiology.<br />

Martin, N. & Laine, M. (2000) Effects <strong>of</strong> contextual priming on impaired word retrieval. Aphasiology, 14,<br />

53-70.<br />

Martin, N., Weisberg, R.W. & Saffran, E. M. (1989) Variables influencing the occurrence <strong>of</strong> naming errors:<br />

implications for models <strong>of</strong> lexical retrieval. Journal <strong>of</strong> Memory and Language, 28, 462-485.<br />

Renvall, K., Laine, M., Laakso, M. & Martin, N. (2003) Anomia treatment with contextual priming: A case<br />

study. Aphasiology, 17, 3, 305-328.


Movement in agrammatism: is the operation impaired ‘per se`’?<br />

Eleonora Rossi a Roelien Bastiaanse Y.R.M a<br />

a Graduate School for Behavioural and Cognitive Neurosciences (BCN), University <strong>of</strong> Groningen, Department <strong>of</strong><br />

<strong>Linguistic</strong>s, P.O. Box 716, 9700 AS, Groningen, The Netherlands<br />

E-mail address corresponding author: e.rossi@let.rug.nl<br />

Telephone number: 0031503635859<br />

Fax number: 0031503636855<br />

Italian Negative Clauses:<br />

Italian negative clauses are characterized by a negative particle, i.e. non (not) which is expressed pre verbally.<br />

The structure <strong>of</strong> Italian negative clauses has been very much into debate. According to Belletti (1990) the<br />

negative particle heads the NP which is found between AGRP and TP. Moreover, ‘non’ is considered to be a<br />

clitic therefore undergoing movement to Agr in order to give the constituent order: Subj. non Vfin . According to<br />

the author, following Pollock`s theory, the verb moves to T and Agr to get agreement and tense. Therefore the<br />

‘negation chain’ and the ‘verb chain’ share the same landing site i.e. Head <strong>of</strong> Agr. In order to have sentences<br />

derived like:<br />

Maria non mangia la mela<br />

Maria does not eat the apple<br />

Maria not eats the apple<br />

the verb is moving from its based position in order to get Tense and Agreement to land in HeadAgr. Note that<br />

this movement is independent from the movement <strong>of</strong> the negative particle non which is moving with a head to<br />

head movement from HeadNegP to HeadAgrP. The V and the negative particle non have the property to share<br />

the same landing site.<br />

Italian Small Clauses:<br />

According to Stowell (1981) a small clause (henceforth SC) is the minimal predicative structure containing an<br />

argument, a predicate but no tense:<br />

Vedo [il gatto mordere inf il topo]<br />

I see the cat biting the mouse.<br />

In contrast in Italian Matrix clauses (MCs) the verb is always finite and express agreement:<br />

Il gatto mordefin il topo<br />

The cat bites the mouse<br />

Even though the analysis proposed by Cardinaletti and Guasti (1993) about negation in full clauses and small<br />

clauses enlights structural differences, no difference is claimed in respect to the rising <strong>of</strong> the negative element.<br />

Therefore we could match small and matrix clauses in this respect.<br />

Hypotheses:<br />

First, we expect small clauses to be better produced than matrix clauses, where the verb has to be moved in order<br />

to pick up its features.<br />

Moreover affirmative clauses are expected be better produced than negative clauses where the negative element<br />

non has to move with a head to head movement to AGR, its landing site. In specific: small clauses should be<br />

better produced than matrix clauses and negative matrix clauses should be the worst produced structures.<br />

Material and methods:<br />

So far, one Italian right-handed agrammatic speaker has been tested: R.B. 51 year old suffered a stroke in the left<br />

hemisphere 12 months ago. R.B. is a native speaker <strong>of</strong> Italian and was classified on the AAT test base as a Broca<br />

aphasic.<br />

Experiment design:<br />

Using a sentence completion task affirmative and negative sentences (108) crossing within the two conditions<br />

i.e. MCs, and SCs, were presented.<br />

The test was prompted by pictures, where the corresponding verb and object had to be filled in. Negative<br />

sentences were prompted with the corresponding affirmative ones and vice versa:<br />

MC: Qui il ragazzo mangia la mela e qui il ragazzo.....<br />

Here the boy eats the apple and here the boy…<br />

SRC: Qui vedo il ragazzo che non mangia la mela e qui vedo il ragazzo che....


Here I see the boy who does not eat the apple and here I see the boy who…<br />

SCs: Qui vedo il ragazzo mangiare la mela e qui vedo il ragazzo....<br />

Here I see the boy eating the apple and here I see the boy…<br />

Results:<br />

Running a Chi 2 test for independence revealed a highly significant association (p=0.000) between structure i.e.<br />

(MC, SC) and finiteness. In 72% <strong>of</strong> the cases the verb in MCs is infinite. Only 28% presents Tense. Instead, in<br />

the SC condition 86% <strong>of</strong> the verbs are correctly produced, i.e. in the non finite form and only 14% show Tense<br />

and Agreement.<br />

Regarding negativity, there was no difference between affirmative and negative clauses (both in Matrix clauses<br />

as well as in embedded clauses). The negative particle non was always produced, in the right position in all<br />

structures.<br />

Conclusions:<br />

We found a significant association between structure and finiteness: this result supports our first hypothesis that<br />

in SCs, where the verb has to be in the finite form, is better produced that MCs where the verb has to express<br />

Tense and Agreement, difficult operation for agrammatic patients.<br />

The hypothesis that negative sentences should be worse produced than affirmative ones is not supported.<br />

Nevertheless, because verb movement to check features resulted impaired and the clitic movement <strong>of</strong> non did not<br />

we can confirm that the two operations are independent. We can therefore support Belletti`s analysis, which is<br />

stating that the two movements are independent.<br />

Furthermore, since verb movement was impaired and the clitic one was not, we can affirm that the operation <strong>of</strong><br />

movement per se` is not impaired in agrammatism. The explanation for the difference in the performance<br />

between the two operations has probably to find other explanations, i.e. the difference in the type <strong>of</strong> movement<br />

or possibly the length <strong>of</strong> movement. Further investigations to understand how the possible explanations can<br />

operate are needed.<br />

References:<br />

Belletti A. 1990. Generalized verb movement; aspects <strong>of</strong> verb syntax, Torino:Rosenberg & Sellier,.<br />

Cardinaletti A. and M. T. Guasti. 1993. Negation in epistemic small clauses. Probus 5:39-61<br />

Rizzi L.. 1982 Issues in Italian Syntax, Foris ed.


Does processing <strong>of</strong> verbs automatically activate action related areas?<br />

Raffaella Ida Rumiati, 1,2 Karsten Specht, 2 Claudio Luzzatti, 3 Chen Qi, 2 and Gereon R. Fink, 2,4<br />

1Cognitive Neuroscience Sector, SISSA, via Beirut 2-4, I-34014 Trieste, Italy, 2 Institute <strong>of</strong> Medicine, Research<br />

Center Jülich, D-52425 Jülich, Germany; 3 Department <strong>of</strong> Psychology, University Milano-Bicocca, I-20126<br />

Milan, Italy; 4 Department Neurology, University Hospital, RWTH, D-52074 Aachen, Germany.<br />

Introduction<br />

Neuropsychological and neuroimaging studies report conflicting evidence as to the neural correlates <strong>of</strong> verb<br />

retrieval and lexical processing. Patients have been described with disproportionate verb impairment not due to<br />

verbs being more prone to language deficits since patients with the opposite pattern were documented. The<br />

majority <strong>of</strong> patients with selective verb deficits show left frontal lesions (Daniele et al., 1994 for a review).<br />

However patients with disproportionate verb deficit were reported having lesions falling outside the left frontal<br />

cortex (Daniele et al., 1994; Tranel et al. 2001; Luzzatti et al., 2002). In particular, in Luzzatti et al. (2002;<br />

Luzzatti et al in prep.), lesions found in the 15 patients with predominant impairment <strong>of</strong> verbs clustered in three<br />

subsets: i) left posterior temporal lobe and left inferior parietal cortex; ii) frontal, temporal and parietal<br />

perisylvian territory; and iii) insula, external capsula and basal ganglia. To date, in any <strong>of</strong> these patients an<br />

isolated frontal lesion was identified. Different loci have been found for the retrieval <strong>of</strong> verbs: left temporal plus<br />

premotor-prefrontal regions (Perani et al., 1999), left posterior temporal and parietal areas (Damasio et al., 2000;<br />

Martin et al., 1995). Others failed to find any difference in activations as compared to nouns or found that verbs<br />

are associated with a higher degree <strong>of</strong> activation but with very similar cortical distribution (Warburton et al.,<br />

1996; Teyler et al., 2001). Finally TMS applied to left prefrontal cortex led to an increase in RTs (Shapiro et al.,<br />

2001) in one study but to a facilitation effect in another one (Cappa et al., 2002). Very recently, activations<br />

within the premotor, and primary motor cortices have been reported during silent reading <strong>of</strong> action verbs (Hauk<br />

et al., 2004). One possible interpretation <strong>of</strong> this latter finding is that verbs implicitly activate motor related areas.<br />

If the actionality <strong>of</strong> verbs automatically activates the underlying motor representation, activation <strong>of</strong> actionrelated<br />

areas should be observed even when the actionality <strong>of</strong> the verb is irrelevant to the online task such as<br />

deciding whether the sentence contains a verb in the present or in the past tense.<br />

Methods<br />

Twelve healthy subjects (ten males, two females) were scanned while they decided whether a written sentence<br />

contained a verb either in the present or in the past form. They responded with either the right or the left hand,<br />

using the index and the middle finger to press the key. Order <strong>of</strong> the task (i.e. “does the sentence contain a verb in<br />

the present form?” or “does the sentence contain a verb in the past form”), and the hand used for responding<br />

were counterbalanced across subjects.<br />

Subjects were presented with sixty sentences containing a verb in the present form and sixty in the past form.<br />

Half <strong>of</strong> them contained an action verb (i.e. “I play/played to the piano”), and half a non-motor verb (i.e. “I<br />

listen/listened to the piano”). Verbs in the two classes were closely matched for frequency. A baseline was used<br />

in which subjects were asked to decide whether a sentence contained a physical or an abstract entity. Nouns<br />

belonging to the two classes were closely matched for frequency. The decision involving the baseline (i.e. “does<br />

the sentence contain a physical entity?” or “does the sentence contain an abstract entity?”), and the hand used for<br />

responding were counterbalanced across subjects. All experimental material was in German.<br />

The paradigm was designed as a hybrid blocked design, by varying parametrically the probability <strong>of</strong> containing<br />

sentences with an action verb. The analysis was eventually performed as an event-related design, separating the<br />

different sentence types. This single-session fMRI experiment contained 440 EPI images, with 25 slices and a<br />

TR <strong>of</strong> 2.6 seconds. The slices were positioned according to a high-resolution T1 weighted image, and were<br />

oriented parallel to the AC-PC line.<br />

Eye-movements were recorded throughout the experiment to ascertain whether subjects scanned the sentences<br />

normally.<br />

Results<br />

Imaging data were analyzed using SPM2. In a random effect analysis, when non-action verbs were subtracted<br />

from action verbs, no significant regions were found activated (for K > 10; P = 0.001, uncorrected).<br />

When action verbs were subtracted from non-action verbs, activations were observed in right temporo-parietal<br />

junction and left parietal lobe, as well as bilaterally in the occipital lobe.


In an ANOVA (1 factor, two levels), the areas activated both when processing action and non action verbs were<br />

located in the left premotor cortex, bilaterally in the parietal lobe, and in the associative visual areas bilaterally,<br />

but more pronounced on the left. There was also a bilateral activation in SMA (for K > 10; P = 0.001, corrected).<br />

When the baseline was subtracted from the action verbs, areas <strong>of</strong> significant differences were detected in left<br />

premotor cortex and left associative visual areas. The same areas, but more significant, were detected, when the<br />

baseline was subtracted from the non-action verbs.<br />

Discussion<br />

Preliminary results do not seem to support the view that actionality <strong>of</strong> verbs activates motor-related areas in a<br />

task in which this characteristic is only implicitly processed. Since some <strong>of</strong> these areas seem to be activated<br />

when subjects processing both types <strong>of</strong> verbs, it is possible that they constitute the neural bases <strong>of</strong> grammatical<br />

judgment. These findings are consistent with recent neuropsychological reports <strong>of</strong> patients with damage to the<br />

left parietal cortex whose impairment in naming was equally severe for action and non actions verbs (Luzzatti et<br />

al. in prep.).


Making meaning in an interaction with an aphasic man<br />

Emmanuelle Savarit and Paul Dickerson<br />

Roehampton University <strong>of</strong> Surrey<br />

This paper will look at the use <strong>of</strong> qualitative research and more particularly, the usefulness <strong>of</strong> conversation<br />

analysis in the study <strong>of</strong> aphasia. In the last decade, researchers from different backgrounds such as linguistics,<br />

speech and language therapists, psychologists etc., have been looking at aphasia from a different perspective,<br />

which now views language as a communicative process.<br />

Conversation is a very important form <strong>of</strong> everyday social activity. The CA focus <strong>of</strong> attention is to look at the<br />

detail <strong>of</strong> local management and the sequential organisation <strong>of</strong> the conversation and aims to comprehend how one<br />

produces his/her own behaviours in conversation and how he /she understands the interactional behaviour <strong>of</strong><br />

others, (Sacks, 1992). Conversation analysis is an empirical approach to the study <strong>of</strong> naturalistic interaction,<br />

(Hemmersley, 2003). It is a departure point for the exploration <strong>of</strong> language impaired people in interaction,<br />

(Goodwin, 2003), focusing on participants’ non-verbal pragmatic skills rather than looking at the syntactic or<br />

lexical content <strong>of</strong> the speech. Applied CA is able to focus attention on the meaning rather that the aesthetic <strong>of</strong><br />

speech.<br />

Aphasic conversation is well organised and structured, (Goodwin and Heritage, 1990). CA has been able to<br />

demonstrate that the organisation <strong>of</strong> aphasic behaviour is much more complex than one would expect. Goodwin,<br />

(1995) shows the complexity <strong>of</strong> aphasic interaction and it is with the use <strong>of</strong> conversation analysis that Goodwin<br />

illustrates the conversational success <strong>of</strong> an aphasic man despite his lexical limitation.<br />

One way to look at the interaction <strong>of</strong> aphasics is to investigate the structure <strong>of</strong> talk with aphasic participants.<br />

Such an investigation would look at sequential placement ,e.g. gaze; embodied activities and the talk <strong>of</strong> others;<br />

sequential organisation, e.g. repair, turn taking; how meaning is built in a local context; or how aphasic people<br />

use physical resources to facilitate, is the co-participant’s access to meaning. A naturalistic setting is one <strong>of</strong> the<br />

focal points <strong>of</strong> the observation <strong>of</strong> aphasic behaviour in everyday conversation. Locally constructed context too,<br />

plays an important role in the understanding <strong>of</strong> the data, (Tetnowski and Franklin, 2003). These investigations<br />

demonstrate that a person suffering from aphasia may achieve communicative success in interaction with nonimpaired<br />

speakers.<br />

Conversation analysis <strong>of</strong> microanalytic studies provides a clear picture <strong>of</strong> the aphasic’s interactional capabilities,<br />

(Perkins, Crisp and Walshaw, 1999). Conversation Analysis may be a useful tool in the assessment <strong>of</strong> aphasic<br />

people, not taking the place <strong>of</strong> cognitive neuropsychological assessment, but as an additional resource for the<br />

therapist, to help her make decisions, (Lesser and Perkins, 1999). Lapointe, 2000; Damico et al, (1999)<br />

demonstrate that conversation analysis brings new values (insights) that can be used in therapeutic interventions.<br />

Recent investigations <strong>of</strong> therapeutic interventions highlight the importance <strong>of</strong> the conversational partner,<br />

(Cunningham and Ward, 2003, Wilkinson, 1999).<br />

This paper will draw a brief outline <strong>of</strong> the origins <strong>of</strong> CA in general terms, as well as its adaptation to the study <strong>of</strong><br />

aphasia. Then, developing on previous CA works, it will explore the interaction <strong>of</strong> an aphasic man which<br />

involves turn taking, repair, gaze, embodied activities, physical environment and talk.<br />

References<br />

Damico, J.S. Oelschlaeger, M. and Simmons-Mackie, N., (1999) Qualitative methods in aphasia research:<br />

conversation analysis. Aphasiology, 13(9-11), 667-679.<br />

Cunningham, R. and Ward, C.D. (2003) Evaluation <strong>of</strong> a training programme to facilitate conversation between<br />

people with aphasia and their partners. Aphasiology, 17(8), 687-707.<br />

Goodwin, C. (1995) Co-Constructing meaning in conversations with an aphasic man. Research on language and<br />

social interaction, 28(3), 233-260.<br />

Goodwin, C. (2003) Introduction in Conversation and brain damage. Oxford University Press, NY, USA.<br />

Hammersley, M. (2003) Conversation analysis and discourse analysis: methods or paradigms? Discourse and<br />

Society, 14 (6) 751-781.


Lapointe, L.L.; (2003) Functional and Pragmatic Direction in <strong>Aphasia</strong> Therapy, in The <strong>Science</strong> <strong>of</strong> <strong>Aphasia</strong>:<br />

From Therapy to Theory edited by Papathanasiou, I. and De Blesser, R. Pergamon , Oxford UK.<br />

Perkins, L. Crisp, J and Walshaw, D, (1999) Exploring conversation analysis as an assessment tool for aphasia:<br />

The issue <strong>of</strong> reliability. Aphasiology, 13 (4/5), 259-281.<br />

Sacks, H.(1992) Lectures on Conversation: Volume I &II. G. Jefferson, ed. Oxford.<br />

Tetnowski, J.A. and Franklin, C.T. (2003) Qualitative Research: Implications for Description and Assessment.<br />

Special forum on Qualitative Research. American Journal <strong>of</strong> Speech and Language Pathology. Vol.12, 155-164.<br />

Wilkinson, R. (1999) Introduction. Aphasiology, 13(4/5), 251-258.<br />

Wilkinson, R. (1999) Sequentiality as a problem and resource for intersubjectivity in aphasic conversation:<br />

analysis and implication for therapy. Aphasiology, 13(4/5), 327-343).


Treatment <strong>of</strong> sentence production in agrammatism: Generalization effects and the role <strong>of</strong><br />

syntactic hierarchy, complexity and treatment modality<br />

A. Schröder, A. Lorenz, J. Postler, N. Stadie, F. Burchert, & R. De Bleser<br />

University <strong>of</strong> Potsdam, Department <strong>of</strong> <strong>Linguistic</strong>s<br />

Introduction<br />

Agrammatic patients have specific problems with the production <strong>of</strong> movement-derived non-canonical sentence<br />

structures. According to the “Tree Pruning Hypothesis” (TPH) (Friedmann & Grodzinsky, 1997; Friedmann,<br />

2001) this deficit is due to an inability to access hierarchically higher nodes <strong>of</strong> the syntactic tree. As a result,<br />

movement-derived structures that rely on higher nodes in the syntactic tree cannot be produced correctly by<br />

agrammatic patients.<br />

With respect to the treatment <strong>of</strong> agrammatic patients and following the TPH, a specific remediation <strong>of</strong> structures<br />

that rely on higher nodes should result in an improvement <strong>of</strong> all syntactic abilities and across different sentence<br />

types relying on lower node structures even though no specific treatment has focussed on lower node structures.<br />

This has been shown by Friedmann and colleagues in a Hebrew-speaking agrammatic patient (Friedmann et al.,<br />

2000).<br />

Alternatively, the complexity account <strong>of</strong> treatment efficacy (CATE, Thompson, Shapiro, Kiran & Sobecks,<br />

2003) predicts that remediation <strong>of</strong> syntactically complex sentences results in an improvement <strong>of</strong> syntactically<br />

less complex sentences but not vice versa. Thompson et al. (2003) reported generalization effects from<br />

production <strong>of</strong> sentences in which movement occurs within an embedded clause (syntactically complex sentences,<br />

i.e. object-relative-clauses) to sentences in which movement occurs in the matrix clause (less complex sentences,<br />

i.e. object extracted who-questions). As syntactically complex sentences rely on higher node structures than<br />

syntactically less complex sentences, the two accounts predict generalization effects in the same direction.<br />

However, Thompson and colleagues predict generalization effects only for structures that rely on the same<br />

movement operations (i.e. wh-movement or NP-movement) as the treated structures. In fact, after treatment <strong>of</strong><br />

structures relying on wh-movement (i.e. object-relative-clauses), Thompson et al. (1997) observed an<br />

improvement only in the production <strong>of</strong> other wh-movement structures (i.e. wh-questions) but not <strong>of</strong> NPmovement<br />

structures (i.e. subject-raising, passive-sentences) and vice versa.<br />

With regard to sentence comprehension versus sentence production, Jacobs and Thompson (2000) found a crossmodal<br />

generalisation effect in one direction, i.e. from training sentence comprehension to sentence production<br />

but not from production to comprehension. This finding is in line with the assumption <strong>of</strong> at least partially<br />

identical processing components underlying comprehension and production as proposed by Garrett (1995).<br />

However, it remains unclear why the generalisation effect is only observed in one direction and how it is<br />

compatible with the assumption <strong>of</strong> distinct processing components for comprehension and production (e.g.<br />

Caramazza & Hillis, 1989).<br />

The aim <strong>of</strong> the present study was to compare two competing accounts on the treatment <strong>of</strong> agrammatic sentence<br />

production outlined above (TPH and CATE) and to investigate possible generalization effects in German. Both<br />

TPH and CATE predict a direction for generalization effects in the treatment <strong>of</strong> agrammatic aphasia, i.e.<br />

remediation <strong>of</strong> syntactically more complex structures (that rely on higher nodes in the syntactic tree) should<br />

result in better performance <strong>of</strong> less complex structures (that rely on lower nodes in the syntactic tree) but not vice<br />

versa (Friedmann et al., 2000; Thompson et al., 2003). However, TPH predicts generalization effects to all<br />

syntactic abilities and structures that rely on lower nodes than the treated structure independently <strong>of</strong> the kind <strong>of</strong><br />

movement these structures rely on (Friedmann et al., 2000), whereas Thompson and colleagues only predict<br />

generalization within sentences that are based on the same movement operations (Thompson et al., 1997). With<br />

respect to the assumption <strong>of</strong> partially identical processing components (Garrett, 1995), a generalization effect<br />

from sentence production to sentence comprehension can be hypothesized, whereas no generalization should be<br />

observable considering distinct processing components (Caramazza & Hillis, 1989).<br />

Design and procedure<br />

We will present the results <strong>of</strong> an ongoing multiple single case treatment study with seven chronic German<br />

Broca’s aphasics with agrammatism (4 men, 3 women; mean age: 53 years, range 33 – 67 years; mean time post<br />

onset: 9,1 years, range 4 – 16 years). A cross-over design controlled for items and tasks was applied (Barlow &<br />

Herson, 1984; Franklin, 1997).<br />

Two distinct treatment phases were applied in order to train the production <strong>of</strong> two types <strong>of</strong> non-canonical whmovement<br />

structures varying in syntactic complexity and hierarchy. Object-relative-sentences were used for<br />

remediation <strong>of</strong> the production <strong>of</strong> syntactically more complex sentences, relying on higher nodes in the syntactic<br />

tree; who-questions were used in order to treat syntactically less complex sentences relying on lower nodes.


During training, the patients had to identify the thematic roles and carry out the movement operations required<br />

for deriving the specific sentence types (after Thompson et al., 2003). Within each treatment phase, up to 12<br />

treatment sessions were conducted over a period <strong>of</strong> six weeks. Baseline testing included the set <strong>of</strong> trained and<br />

untrained items in production and comprehension tasks as well as the production <strong>of</strong> NP-movement structures<br />

(passive sentences).<br />

Results and Discussion<br />

Preliminary results <strong>of</strong> the ongoing study showed that both treatment methods seem to be appropriate to reveal<br />

item-specific learning effects. The results will be discussed within the framework <strong>of</strong> the two theoretical accounts<br />

on agrammatic production treatment depicted above. In particular, we will refer to the following effects:<br />

(1) a structure specific learning effect when improvement is observed within sentence structure. These<br />

improvement patterns can either be established only for treated item sets, or improvement can be observed for<br />

untreated item sets.<br />

(2) a generalized learning effect when improvement is observed across sentence structure for untrained item sets<br />

within the same modality. This effect can either be established for untrained sentences structures that rely on the<br />

same movement operations (wh-movement), or to untrained sentences structures that rely on different movement<br />

operations (NP-movement)<br />

(3) a cross-modal generalization effect in case <strong>of</strong> improvement in the untrained modality (comprehension).<br />

Theoretical and therapeutic implications will be discussed.<br />

References<br />

Barlow, D.H., & Hersen, M.H. (1984) The single-case in basic and applied research: A historical perspective. In<br />

Single Case Experimental Designs. London: Allyn & Bacon.<br />

Caramazza, A., & Hillis, A. (1989) The disruption <strong>of</strong> sentence production: Some dissociations. Brain and<br />

Language, 36, 625-650.<br />

Franklin, S. (1997) Designing single case treatment studies for aphasic patients. Neuropsychological<br />

Rehabilitation, 7, 401-418.<br />

Friedmann, N., & Grodzinsky, Y. (1997) Tense and agreement in agrammatic production: pruning the syntactic<br />

tree. Brain and Language, 56, 397-425.<br />

Friedmann, N., Wenkert-Olenik, D., & Mali, G. (2000) From theory to practice: treatment <strong>of</strong> agrammatic<br />

production in Hebrew based on the Tree Pruning Hypothesis. Journal <strong>of</strong> Neurolinguistics, 13, 250-253.<br />

Friedmann, N. (2001) Agrammatism and the psychological reality <strong>of</strong> the syntactic tree. Journal <strong>of</strong><br />

Psycholinguistic Research, 30, 71-90.<br />

Garrett, M. (1995) The structure <strong>of</strong> language processing: Neuropsychological evidence. In: M.S. Gazzaniga (ed.)<br />

The Cognitive Neurosciences. Cambridge, MA: MIT Press.<br />

Jacobs, B.J., & Thompson, C.K. (2000) <strong>Cross</strong>-modal generalization effects <strong>of</strong> training noncanonical sentence<br />

comprehension and production in agrammatic aphasia. Journal <strong>of</strong> Speech, Language, and Hearing Research, 43,<br />

5-20.<br />

Thompson, C.K., Shapiro, L.P., Ballard, K.J., Jacobs, B.J., Schneider, S.S., & Tait, M.E. (1997) Training and<br />

generalized production <strong>of</strong> Wh- and NP-movement structures in agrammatic aphasia. Journal <strong>of</strong> Speech and<br />

Hearing Research, 40, 228-244.<br />

Thompson, C.K., Shapiro, L.P., Kiran, S., & Sobecks, J. (2003) The role <strong>of</strong> syntactic complexity in treatment <strong>of</strong><br />

sentence deficits in agrammatic aphasia: the complexity account <strong>of</strong> treatment efficacy (CATE). Journal <strong>of</strong><br />

Speech and Hearing Research, 46, 591-607.


Endcoding and decoding deficits in a coduction aphasic<br />

Kyriakos Sidiropoulos 1 , Ria De Bleser 2 , Hermann Ackermann 3 , Bruno Preilowski 4<br />

1 Graduate School <strong>of</strong> neural and behavioural <strong>Science</strong>s, University Tübingen<br />

2 Humanwissenschaftliche Fakultät, Patholinguistics, Potsdam<br />

3 Department <strong>of</strong> Neurology, University Tübingen<br />

4 Department <strong>of</strong> Psychology, University Tübingen<br />

The research in the fields <strong>of</strong> auditory agnosia [1] showed that there is a preverbal processing level, in which<br />

acoustic signals are analyzed <strong>of</strong> their temporal characteristics. A functional loss <strong>of</strong> this level is accompanied by a<br />

reduction <strong>of</strong> the ability to perceive verbal and nonverbal sounds. Bilateral lesions in posterior superior temporal<br />

gyrus (pSTG), which extend also laterally in planum temporale, are responsible for it.<br />

The conduction aphasic subject examined in this study showed in the acute stage <strong>of</strong> his illness a similar<br />

symptomatology to auditory agnosia. His auditory difficulties for nonverbal sounds regressed completely in the<br />

course <strong>of</strong> the time, however occurred the processing <strong>of</strong> syllables, words and nonwords incorrectly. These<br />

difficulties are not based on a phonemic disturbance like in word deafness because word-deaf patients are<br />

generally unable to analyze linguistic stimuli and access their phonology.<br />

In order to specify the nature <strong>of</strong> the disturbances in our conduction aphasic patient, four experiments were<br />

designed: 1. a consonant-vowel distinction task, 2. a gap detection task with wide-band noises, 3. a lexical<br />

decision task and 4. a repetition task.<br />

The results from this study support the hypothesis that in the left pSTG a buffer does exist, which phonetically<br />

analyse [2] and briefly stored [1] all verbal sequences. This buffer is involved in phonological aspects <strong>of</strong> speech<br />

perception and production. Therefore lesions in the left posterior temporal gyrus (pSTG) not only affect<br />

executive, but also auditory perception functions. Structural factors, like the familiarity and regularity <strong>of</strong><br />

phonotactic patterns, the frequency <strong>of</strong> use <strong>of</strong> a word and the lexical density affect the strength <strong>of</strong> storage. Also<br />

the arriving semantic information contributes to the stability <strong>of</strong> the representation. In syllables and nonwords<br />

arise the interferences faster, because such sequences don’t have a semantic representation. This is why<br />

conduction aphasics with a left pSTG lesion have particularly greater difficulties to keep in mind such verbal<br />

sequences.<br />

In order to confirm the results from this case study, a voxel-based lesion-symptom mapping study is in progress.<br />

1. Buchsbaum, B. R., Hickok, G., Humphries, C. (2001): Role <strong>of</strong> left posterior superior temporal gyrus in<br />

phonological processing for speech perception and production. Cognitive <strong>Science</strong> 25, 663-678.<br />

2. Hickok, G., Poeppel, D. (2000): Towards a functional neuroanatomy <strong>of</strong> speech perception. Trends<br />

Cogn. Sci. 4, 131–138.<br />

3. Poeppel, D. (2001): Pure word deafness and the bilateral processing <strong>of</strong> the speech code. Cognitive<br />

science 25: 679-693.


What the speaking brain tells us about functional imaging - can language be far behind?<br />

John J. Sidtis<br />

Nathan Kline Institute, New York University<br />

Functional brain imaging with positron emission tomography (PET) and functional magnetic resonance<br />

imaging (fMRI) has become the dominant approach to the study <strong>of</strong> brain-behavior relationships. In spite <strong>of</strong><br />

the growth <strong>of</strong> this field, the functional significance <strong>of</strong> data from brain imaging is not well understood<br />

(Sidtis, 2000). Studies on brain activity during speech production and other motor tasks raise questions<br />

about some common assumptions such as whether images obtained during complex behavior can be<br />

decomposed into meaningful subunits, and whether the degree <strong>of</strong> \"activation\" in a brain region is a<br />

measure <strong>of</strong> its importance. More generally, these studies suggest that experimental designs that depend on<br />

contrasting imaging conditions may be problematic. Although these issues have been raised in the context<br />

<strong>of</strong> motor speech studies, the concerns should extend to language studies as well.<br />

A group <strong>of</strong> 13 right-handed normal volunteers (aged 43 ± 11 years) participated in studies one and two.<br />

A subset <strong>of</strong> 11 right-handed normal volunteers (45 ± 12 years) participated in study three. All participants<br />

were right-handed, native speakers <strong>of</strong> English. Images were obtained using [15O]water and PET. All<br />

studies employed the same design: four 90 sec resting scans (R) alternating with four 90 sec task<br />

performance scans (P). Each scanning session was dedicated to a single task.<br />

Tasks were performed for 60 sec. Syllable production (studies 1,2,3) required subjects to repeat the<br />

syllables /pa, ta, ka/ as quickly as possible. Sustained phonation (studies 1,3) required subjects to produce<br />

and sustain the vowel sound /ah/ as long as possible. Lip closure (studies 1,3) required subjects to<br />

repetitively open and close their lips as if they were saying /pa/, without making any sound, as quickly as<br />

possible. Finger opposition (study 3) required subjects to use the thumb <strong>of</strong> the non-dominant hand to touch<br />

successive digits in sequence (2, 3, 4, 5, 4, 3, 2, 3 ...) at a rate <strong>of</strong> 1 Hz paced by a tone.<br />

The following regions (left and right) were examined: inferior, middle, and superior portions <strong>of</strong><br />

cerebellum in horizontal planes, superior temporal gyrus, transverse temporal gyrus, putamen, caudate,<br />

thalamus, inferior frontal lobe, pre- and postcentral gyri, supplementary motor area.<br />

The first study examined whether syllable repetition could be decomposed into articulatory and<br />

phonatory components by subtracting different constituent tasks. The activity identified when the resting<br />

scans were subtracted from the lip closure scans was compared to the articulatory pattern identified when<br />

phonation scans were subtracted from the syllable repetition scans. Similarly, the activity identified when<br />

the resting scans were subtracted from the phonation scans was compared to the pattern identified when lip<br />

closure scans were subtracted from the syllable repetition scans. The results <strong>of</strong> these two approaches (task<br />

subtraction and rest subtraction) did not agree, and the results <strong>of</strong> the resting state subtractions were more<br />

like the known functional anatomy <strong>of</strong> speech than were the task subtractions. Moreover, activity was<br />

higher in some key brain regions during the constituent tasks than during the syllable repetition task (Sidtis<br />

et al., 1999).<br />

The second study examined the question <strong>of</strong> whether any form <strong>of</strong> the imaging data could be used to<br />

predict speech rate in the syllable production task. Using regional data normalized by an estimate <strong>of</strong> global<br />

flow, a linear combination <strong>of</strong> an increase in Broca\'s area and a decrease in the right caudate predicted<br />

increased speech rate. However, if the speech production scans were contrasted with resting state data,<br />

performance levels could not be predicted (Sidtis et al., 2003). In addition, it was noted that the blood flow<br />

in Broca\'s area during speech did not represent the highest level <strong>of</strong> activity in the brain, with or without<br />

subtracting the resting state and blood flow decreased in the caudate.<br />

The third study examined the resting states associated with each task (syllable repetition, sustained<br />

phonation, lip closure, and finger opposition). When the data for the resting states associated with each<br />

task were analyzed, a significant effect <strong>of</strong> task was observed. Further, when regional blood flows were<br />

correlated, it was found that resting state values from a particular session were more highly correlated with<br />

the task performance values from that session than with the values from resting states associated with other<br />

tasks. Interestingly, the caudate was the only region that responded similarly during task performance and<br />

rest states (Sidtis et al., in press).<br />

Functional imaging is a powerful tool for studying brain-behavior relationships. However, several<br />

assumptions should be approached with caution. The speech studies demonstrate that repeating syllables is<br />

not the sum <strong>of</strong> the appropriate articulatory and phonatory components. Consequently, task subtraction does<br />

not identify important brain regions. Contrasting speech scans with resting scans does not help to identify<br />

important regions either. Such comparisons eliminate relationships between regional blood flow and<br />

speech rate. Finally, an analysis <strong>of</strong> resting state data indicates that cognitive set plays a significant role


during the scanning session, further complicating task comparisons. The role <strong>of</strong> functional imaging in<br />

understanding brain-behavior relationships will grow as we better understand the meaning <strong>of</strong> these signals.<br />

Sidtis JJ, et al. NeuroImage 5: 490-496, 1999.<br />

Sidtis JJ. Brain and Cognition 42: 75-77, 2000.<br />

Sidtis JJ, et al. NeuroImage 20, 615-624, 2003.<br />

Sidtis JJ, et al. NeuroImage, in press.


Production and comprehension <strong>of</strong> verbs with alternating transitivity by Greek patients with<br />

Broca’s aphasia<br />

Stavroula Stavrakaki, Zoe Katsarou, Artemis Alexiadou & Sevasti Bostanjopoulou<br />

University College London, Hippokration Hospital Thessaloniki, University <strong>of</strong> Stuttgart & University <strong>of</strong><br />

Thessaoniki<br />

Recent studies on the production <strong>of</strong> verbs with alternating transitivity (e.g. the boy breaks the glass/the glass<br />

breaks) by patients with Broca’s aphasia have indicated that most <strong>of</strong> the aphasic patients had more problems with<br />

the intransitive rather than with the transitive construction (Bastiaanse & van Zonneveld 2002).<br />

This study addresses the issue <strong>of</strong> verbs with alternating transitivity in Broca’s aphasia on the basis <strong>of</strong> Greek data.<br />

Specifically, we investigate the performance <strong>of</strong> Greek patients with Boca’s aphasia on the production and<br />

comprehension <strong>of</strong> unaccusative verbs entering transitivity alternations. In Greek, unaccusative verbs show<br />

evidence for A-movement. However, they do not all show the same morphology. There are unaccusatives with<br />

active morphology (Act), unaccusatives with passive morphology (Nact) and finally unaccusative verbs both<br />

active and passive morphology as shown by the examples in (1-3) below:<br />

(1) i sakula adiase<br />

the bag-nom emptied-Act<br />

'The bag emptied'<br />

(2) i supa kaike<br />

the soup-nom burnt-Nact<br />

'The soup burnt'<br />

(3) a. to ktirio gremise<br />

the building-nom collapsed-Act<br />

b. to ktirio gremistike<br />

the building-nom collapsed-Nact<br />

'The building collapsed'<br />

We suggest that the study <strong>of</strong> unaccusatives in Greek enables us to investigate the effects that A-movement and<br />

passive morphology have on the aphasic performance.<br />

Two individuals with Broca’s aphasia and agrammatism participated in the experimental study: KS and AM.<br />

They were right-handed and the aphasia was due to an ischemic infarct in the left hemisphere. Two tasks have<br />

been used in this study: an elicited production task (cf. Bastiaanse & van Zonneveld 2002) and a picture-pointing<br />

task. The experimental material included 15 transitive and 15 unaccusative verbs. In the production experiment,<br />

a picture was shown and the verb was orally presented in the first person, as there no infinitival forms in Greek.<br />

The subject was asked to tell in one sentence what was happening in the picture using the verb. The response<br />

was scored as correct when a sentence with the verb in the appropriate transitive or intransitive form was<br />

produced. In the second experiment, the subject was visually presented with three pictures; two <strong>of</strong> them<br />

corresponded to the transitive/intransitive form <strong>of</strong> the verb while the remaining one showed a semantic<br />

distracter. The subject was orally presented the transitive or intransitive sentence and should point to the correct<br />

picture.<br />

The results indicated that both patients showed a high level <strong>of</strong> correct performance on comprehension <strong>of</strong> both<br />

transitive and unaccusative verbs. However, they did not show homogeneous performance on the production <strong>of</strong><br />

unaccusative verbs: on the one hand, KS produced some unaccusative verbs with passive morphology but she<br />

failed to produce unaccusative verbs with active morphology. On the other hand, AM failed to produce<br />

unaccusative verbs altogether. When the patients failed to produce the target unaccusative structure, they<br />

produced the transitive structure in most <strong>of</strong> the cases. In sum, with respect to the patient KS, the findings show<br />

that unaccusative verbs that appear with passive morphology were retrieved more easily than unaccusatives with<br />

active morphology; consequently, passive morphological marking <strong>of</strong> unaccusative verbs facilitated verb<br />

retrieval. By contrast, passive morphology was not exploited at all by the patient AM who showed a general<br />

deficit in unaccusative verb production. Finally, the fact that both patients had problems with active unaccusative<br />

verbs indicates difficulties with A-movement in unaccusative structures.


Syllable Structure in Aphasic Jargon<br />

Prisca Stenneken, Roelien Bastiaanse, Walter Huber & Arthur M. Jacobs<br />

Freie Universität, Berlin<br />

Aim <strong>of</strong> the present study is to further investigate the syllable structure in neologistic jargon aphasia. The frequent<br />

occurrence <strong>of</strong> phonematic neologisms makes it difficult to identify target words and thus to investigate<br />

correspondences to legitimate words <strong>of</strong> the standard language. Still, a tool for investigating possible regularities<br />

in aphasic neologisms has been provided by analyses <strong>of</strong> sonority structure (Christman, 1992). The underlying<br />

concept is the notion <strong>of</strong> a preferred syllable type (Clements, 1990), reflected by the simple, open consonantvowel<br />

(CV-) syllable with presents a maximal contrast in sonority between its segments. Syllables are regarded<br />

as being less complex, the more they resemble this preferred sonority structure. These theoretical considerations<br />

form the basis <strong>of</strong> the present comparison <strong>of</strong> aphasic neologisms to standard German. Analyses <strong>of</strong> German<br />

syllable structures are considered theoretically interesting, as German contains extraordinarily complex syllable<br />

structures. A general prediction derived from the sonority theory is the frequent occurrence <strong>of</strong> syllable types,<br />

which are least complex according to their sonority pr<strong>of</strong>ile, for the aphasic neologisms and for legitimate<br />

German words. Moreover, the preferred syllable structure should be even more prominent when lexical<br />

influences are minimized or when normal phonological processing is blocked; thus a stronger tendency should<br />

be observed in neologisms compared to standard German.<br />

Methods<br />

The neologism data are collected from the spontaneous speech <strong>of</strong> a jargon aphasic patient, KP, a right-handed,<br />

59 year-old male and native speaker <strong>of</strong> German. He developed a severe Wernicke's aphasia with neologistic<br />

jargon after a CVA to the left hemisphere with an extensive lesion in the perfusion region <strong>of</strong> the left arteria<br />

cerebri media. The spontaneous speech is characterized by many phonematic neologisms and few phonematic<br />

paraphasias. Speech production is fluent and does not contain any spontaneous corrections <strong>of</strong> speech errors or<br />

any signs <strong>of</strong> lexical search. KP does not produce any phonetically distorted utterances; nor is there evidence for<br />

an articulatory disorder.<br />

The aphasic speech data were collected 7 months post-onset <strong>of</strong> the CVA in a semi-structured interview.<br />

Utterances presenting phonemic deviations from standard German were categorized as either phonematic<br />

paraphasias or neologisms. Criterion for the classification as a phonemic paraphasia was the occurrence <strong>of</strong><br />

phonematic distortions, which allowed identifying a word <strong>of</strong> standard German and also the process leading to the<br />

distortion, whereas the utterances that – on the level <strong>of</strong> speech sounds – can not be considered part <strong>of</strong> the<br />

standard language (Huber, Poeck & Weniger, 1989) were classified as neologisms.<br />

Analyses <strong>of</strong> the German data rely on the CELEX database for phonological German word forms (Baayen,<br />

Piepenbrock & van Rijn, 1993). In two variants <strong>of</strong> the analysis, the frequency <strong>of</strong> the demisyllable types was<br />

computed either as the total number <strong>of</strong> words containing this demisyllable type, or as the summed frequency <strong>of</strong><br />

all words containing this demisyllable. The sonority pr<strong>of</strong>ile was determined for the neologistic and standard<br />

German syllables according to the sonority theory (Clements, 1990).<br />

Results and Discussion<br />

Results show, that the standard German data and the aphasic neologisms reflect a tendency towards the preferred<br />

syllable type. In both data sets, the most frequent demisyllable types present a maximum sonority contrast in<br />

syllable onsets and a minimum contrast in <strong>of</strong>fsets. A similar tendency is observed in more complex demisyllable<br />

types, though these occurred less frequently and showed the tendency in a less prominent way. Results are<br />

confirmed by additional context-specific analyses, applied to the neologism data, and by comparable findings for<br />

the two variants <strong>of</strong> analysis <strong>of</strong> the German data set. Thus, it can be concluded that sonority constrains aphasic<br />

speech even when no lexical target can be identified. Converging evidence for sonority constraints in non targetrelated<br />

aphasic utterances comes from previous analyses <strong>of</strong> neologisms produced in various language tasks<br />

(Christman, 1992) and <strong>of</strong> recurring utterances (Code & Ball, 1994).<br />

Comparisons <strong>of</strong> the sonority structure in neologisms to that in the German language reveal high correlations <strong>of</strong><br />

the two data sets, indicating similar distributional patterns. Based on previous findings <strong>of</strong> a less complex sonority<br />

structure in aphasic speech errors (e.g., Bastiaanse, Gilbers & van der Linde, 1994; Romani & Calabrese, 1998),<br />

the present study investigates whether a similar tendency towards less complex sonority structure is observed in<br />

the non target-related neologisms when compared to legitimate German words. As expected, results confirm a<br />

stronger tendency towards the preferred syllable in the aphasic neologisms, as indicated by increased frequencies<br />

<strong>of</strong> the theoretically preferred syllable types. These findings are in line with an enhanced influence <strong>of</strong> the sonority<br />

principle in the impaired language system, not only in phonematic distortions when the target word can be<br />

identified but also in non target-related neologisms. The results <strong>of</strong> the present study support the view <strong>of</strong> a default<br />

sonority pattern <strong>of</strong> segment selection which becomes apparent when phonological processing is impaired.


References<br />

Baayen, R. H., Piepenbrock, R. & van Rijn, H. (1993). The CELEX Lexical Database (CDROM). Philadelphia,<br />

PA: <strong>Linguistic</strong> Data Consortium, University <strong>of</strong> Pennsylvania.<br />

Bastiaanse, R., Gilbers, D. & van der Linde, K. (1994). Sonority substitutions in Broca's and Conduction<br />

aphasia. Journal <strong>of</strong> Neurolinguistics, 8, 247-255.<br />

Christman, S.S. (1992b). Uncovering phonological regularity in neologisms: Contributions <strong>of</strong> sonority theory.<br />

Clinical <strong>Linguistic</strong>s & Phonetics, 6, 219-247.<br />

Clements, G.N. (1990). The role <strong>of</strong> sonority in core syllabification. In Kingston, J. & Beckman, M.E. (eds.),<br />

Papers in Laboratory Phonology I. Between the Grammar and Physics <strong>of</strong> Speech (p. 283-333). Cambridge:<br />

CUP.<br />

Code, C. & Ball, M.J. (1994). Syllabification in aphasic recurring utterances: Contributions <strong>of</strong> sonority theory.<br />

Journal <strong>of</strong> Neurolinguistics, 8 (4), 257-265.<br />

Huber, W., Poeck, K. & Weniger, D. (1989). Aphasie. In Poeck, K. (ed.), Klinische Neuropsychologie (S. 89-<br />

137). Stuttgart: Thieme.<br />

Huber, W., Poeck, K., Weniger, D. & Willmes, K. (1983). Aachener Aphasie Test. Göttingen: Hogrefe.<br />

Romani, C. & Calabrese, A. (1998). Syllabic constraints in the phonological errors <strong>of</strong> an aphasic patient. Brain<br />

and Language, 64, 83-121.


Mental Transformations after damage to the Motor Hand Area:<br />

Neuropsychological Evidence<br />

Barbara Tomasino(1), Miran Skrap (2), Raffaella Ida Rumiati (1)<br />

(1) Programme in Neuroscience, Scuola Internazionale Superiore di Studi Avanzati (SISSA), Trieste, Italy<br />

(2) Unità Operativa di Neurochirurgia, Azienda Ospedaliera S. Maria della Misericordia, Udine, Italy<br />

Recent studies seem to attribute higher cognitive functions to an area that so far has been considered to deal with<br />

lower level motor movements (i.e. primary motor cortex). Hauck et al. (2004) found a somatotopic activation <strong>of</strong><br />

the M1 area (and premotor cortex) during a passive reading task <strong>of</strong> action words referring to face, arm or leg<br />

actions. It is known that imagery for movements <strong>of</strong> different body parts activate the M1 cortex in a somatotopic<br />

manner according to the body part involved in the simulation (Stippich et al., 2002; Ehrsson et al., 2003) In the<br />

present study, to further investigate the contribution <strong>of</strong> the M1 cortex to the simulation <strong>of</strong> movements we studied<br />

Metal Rotation (MR) abilities in patients with lesions invading the M1 cortex. We aimed at investigating<br />

whether the involvement <strong>of</strong> M1 in MR is stimulus-bound (Exp. 1) or it is strategy driven (Exp.2). We found that<br />

lesions to the hand motor area <strong>of</strong> the left hemisphere (as opposed to M1 lesions sparing the hand area) impaired<br />

the ability to solve a MR task by imagining a hand grasping a turning movement (i.e. adopting the motor<br />

strategy, Kosslyn et al., 2001; Tomasino et al., in press).<br />

Method<br />

We studied 7 patients with a tumor involving the left (patients PF, GG, OM, JM and GA) or the right M1<br />

(patients LC and HN). The lesion invaded the hand motor area in 5 patients (PF, GG, OM in the left M1 and LC<br />

and HN in the right M1), and spared the hand area in two <strong>of</strong> them (JM and GA in the left M1).<br />

In Exp.1 we manipulated the type <strong>of</strong> stimulus. All patients performed MR <strong>of</strong> hand and <strong>of</strong> letter shapes. Only<br />

patients with a left M1 lesion invading the hand motor area (as compared with those whose lesion was localized<br />

above or below the hand area representation) failed to mentally rotate hands but succeeded with letters. JM and<br />

GA, were better in mentally rotating hands, than those PF (Wilcoxon, p < .05 and p < .001 respectively), GG<br />

(Wilcoxon, p < .01 and p < .001 respectively) and OM (Wilcoxon, p < .05 and p < .005 respectively). In addition<br />

patients with a right M1 lesion were as accurate as controls in rotating both tasks. LC and HN were better than<br />

PF (Wilcoxon, p < .005 for both), GG (Wilcoxon, p < .005 for both) and as OM (Wilcoxon, p < .05 for both) in<br />

solving the MR <strong>of</strong> hand task.<br />

But is the involvement <strong>of</strong> the motor hand area stimulus-bound or rather is it strategy-driven? We therefore<br />

carried out Experiment 2, in which patients were instructed to mentally rotate hands and Shepard and Metzler’s<br />

stimuli using a motor (i.e. MR as a consequence <strong>of</strong> their own hand turning the stimulus) and a visual strategy<br />

(i.e. imagining the stimulus as rotating in the visual space). Independent <strong>of</strong> the type <strong>of</strong> stimulus, patients with the<br />

lesion <strong>of</strong> the left motor hand area (as compared to those with a lesion sparing the left hand motor area) showed a<br />

dissociation between the two strategies: they selectively failed to use the motor strategy but succeeded in<br />

adopting the visual strategy. In particular in the MR <strong>of</strong> hand task JM and GA were more accurate than PF, GG<br />

and OM when using the motor strategy (Wilcoxon, p < .001 for GG and OM and Wilcoxon, p < .01 for PF, when<br />

contrasted with patient JM; Wilcoxon, p < .001 for GG and OM and Wilcoxon, p < .05 for PF when contrasted<br />

with patient GA). By contrast all <strong>of</strong> them performed the MR normally when adopting the visual strategy<br />

(Wilcoxon, all p > .05, n.s.). In addition patients whose lesion involved the right hand area succeeded in<br />

performing both tasks. HN was more accurate than OM, PF and GG when using the motor strategy (Wilcoxon, p<br />

< .001 for PF and OM and Wilcoxon, p < .05 for GG) as it were LC (Wilcoxon, p < .001 for PF and GG and<br />

Wilcoxon, p < .05 for OM). By contrast all <strong>of</strong> them performed the MR normally when adopting the visual<br />

strategy (Wilcoxon, all p > .05, n.s.). The same significant differences were obtained for the MR <strong>of</strong> cubes task.<br />

In summary, varying the type <strong>of</strong> strategy in a MR task <strong>of</strong> hands and 3D stimuli, we found that,<br />

independent <strong>of</strong> the type <strong>of</strong> stimulus: (i) patients with a lesion in the left M1 (and not right M1) selectively failed<br />

to MR stimuli as a consequence <strong>of</strong> their own action, but succeeded in carrying out the task by imagining the<br />

stimuli rotating in the visual space; (ii) the critical area in the left M1 cortex is the hand representation and (iii)<br />

the strategies are implicitly triggered according to the type <strong>of</strong> stimulus (Exp 1) but can be adopted during MR <strong>of</strong><br />

both kind <strong>of</strong> stimuli if explicitly required by the experimenter instructions (Exp 2). These results suggest that the<br />

involvement <strong>of</strong> the M1 cortex in MR is strategy-driven and that the hand motor area supports the simulation <strong>of</strong><br />

hand movements. Therefore we argue that areas within the M1 cortex can be selectively recruited according to<br />

the body part involved in the motor imagery process.


The Use Of Tactile-Kinaesthetic Feedback As A Therapeutic Intervention In A Case Study Of<br />

Pure Alexia<br />

Tree, J. J., Skillicorn, B. J. & Kay, J. M.<br />

University <strong>of</strong> Exeter<br />

The present study reports the case <strong>of</strong> Eddie, a retired teacher who presents with a pattern <strong>of</strong> impairment<br />

consistent with pure alexia (letter-by-letter reading) following a stroke. Assessments were carried out to identify<br />

the precise nature <strong>of</strong> his reading difficulties and revealed considerable deficits in the processing <strong>of</strong> written letters,<br />

<strong>of</strong>ten leading to misidentification <strong>of</strong> whole words. However, his other language abilities remained substantially<br />

intact. From the analysis <strong>of</strong> this assessment, therapy was designed and implemented with the aim <strong>of</strong> improving<br />

Eddie’s accuracy at identifying individual letters to lead to more accurate identification <strong>of</strong> whole words.<br />

Specifically, a tactile-kinaesthetic facilitation approach (similar to that employed by Lott and colleagues (Lott,<br />

Friedman and Linebaugh, 1994, Lott & Friedman, 1999)) was adopted in which Eddie was taught to trace<br />

visually presented uppercase letters onto his palm. Assessments designed to evaluate the usefulness <strong>of</strong> therapy<br />

revealed improved performance after therapeutic intervention on uppercase letter identification and reading <strong>of</strong><br />

whole words. Interestingly, these improvements did not extend to identification <strong>of</strong> lowercase letters or to<br />

uppercase visual lexical decision. The potential limitations and implications <strong>of</strong> the study and areas for further<br />

research are discussed.<br />

Lott, Friedman & Linebaugh (1994) Rationale and efficacy <strong>of</strong> a tactile-kinaesthetic treatment for alexia.<br />

Aphasiology, 8, 181-195.<br />

Lott & Friedman, (1999) Can treatment for pure alexia improve letter-by-letter reading speed without sacrificing<br />

accuracy? Brain & Language, 67, 188-201.


Syntactic movement and comprehension difficulties in Broca’s aphasia<br />

Ineke van der Meulen (a), Roelien Bastiaanse (b), and Johan Rooryck (a)<br />

(a) University Leiden Centre for <strong>Linguistic</strong>s (ULCL)<br />

(b) Graduate School <strong>of</strong> Behavioral and Cognitive Neurosciences (BCN)<br />

Introduction<br />

It has <strong>of</strong>ten been observed that Broca patients show better comprehension <strong>of</strong> sentences involving<br />

movement out <strong>of</strong> the subject position (e.g. subject clefts and relative clauses) than <strong>of</strong> their object<br />

counterparts (1-3). This subject/object asymmetry is commonly assumed to characterize the<br />

comprehension deficit in Broca’s aphasia and as such forms the basis for many accounts <strong>of</strong> the<br />

comprehension difficulties <strong>of</strong> Broca patients.<br />

However, patients’ comprehension <strong>of</strong> wh-questions does not show a subject/object asymmetry.<br />

English-speaking Broca patients understand both subject and object wh-questions equally well (4-6).<br />

Still, wh-questions also involve syntactic movement. The question thus arises why patients’<br />

comprehension <strong>of</strong> wh-questions differs from that obtained on other movement-derived constructions.<br />

Does movement <strong>of</strong> the wh-word not affect patients’ comprehension?<br />

Comprehension <strong>of</strong> wh-questions has only been examined for English-speaking Broca patients.<br />

<strong>Cross</strong>linguistic data are needed to determine whether the intact comprehension <strong>of</strong> wh-questions is a<br />

general characteristic <strong>of</strong> Broca’s aphasia. We have conducted a study examining comprehension <strong>of</strong><br />

wh-questions in French-speaking Broca patients. The results <strong>of</strong> these patients will be compared to<br />

those obtained on English-speaking Broca patients. Further, this study aims to answer the question<br />

whether movement <strong>of</strong> the wh-word affects patients’ comprehension.<br />

Experiment<br />

Comprehension <strong>of</strong> wh-questions was tested using a picture-pointing task. Each picture represented a<br />

reversible event involving three persons, e.g. a boy hitting a girl, who is in turn hitting another boy.<br />

The experimenter read a wh-question aloud and patients were asked to point to the person representing<br />

the answer to the question. In French object questions, movement <strong>of</strong> the wh-word is optional.<br />

(1) a. Le garçon frappe qui? (lit. the boy hits who?)<br />

b. Qui est-ce que le garçon frappe?<br />

Both questions in (1) mean Who does the boy hit?. The only difference between these questions is that<br />

in (1a) the wh-word has remained in-situ, whereas it has been moved in (1b). This property <strong>of</strong> French<br />

makes it possible to examine the effect <strong>of</strong> wh-movement on patients’ comprehension. If wh-movement<br />

does affect patients’ comprehension, French-speaking Broca patients will have more difficulties<br />

understanding a question <strong>of</strong> the type in (1b) than that <strong>of</strong> the type in (1a). The experiment thus<br />

contained subject questions and the two types <strong>of</strong> object questions illustrated in (1).<br />

Nine monolingual francophone agrammatic patients participated in the experiment (3 men, 6 women,<br />

mean age 51,7 years, mean time post onset 91,9 months). All patients were non-fluent and classified as<br />

Broca patients on the basis <strong>of</strong> standardized neuropsychological tests. Their aphasia resulted from a<br />

stroke in the left frontal brain regions.<br />

Results<br />

The results are given in table 1.


Table 1<br />

Comprehension <strong>of</strong> wh-questions (percentage correct)<br />

Patient Subject question Object question<br />

(wh-in-situ)<br />

CA 41,7 83,3 66,7<br />

JD 100 100<br />

AM 77,8 61,1<br />

AR 97,2 94,4 94,4<br />

ST 30,6 83,3 77,8<br />

LD 94,4 100 88,9<br />

MG 27,8 66,7 38,9<br />

SM 47,2 88,9 72,2<br />

BS 33,3 66,7 50<br />

Mean 53,2 84,6 72,2<br />

Object question<br />

(wh-movement)<br />

The results show that patients’ comprehension <strong>of</strong> wh-in-situ wh-questions is significantly better than<br />

that <strong>of</strong> object questions involving wh-movement (Wilcoxon: z=-2,41; p=0,016. Secondly, wh-in-situ<br />

object questions are understood significantly better than subject questions (Wilcoxon: z=-2,2;<br />

p=0,028). Thirdly, patients show a tendency towards a better comprehension <strong>of</strong> object questions<br />

involving wh-movement versus that <strong>of</strong> subject questions, but this difference is not significant<br />

(Wilcoxon: z=-1,86; p=0.063).<br />

Discussion<br />

French-speaking Broca patients understand wh-in-situ object questions (1a) better than their<br />

counterparts involving wh-movement (1b). This shows that movement <strong>of</strong> the wh-word affects<br />

comprehension in Broca’s aphasia.<br />

The second purpose <strong>of</strong> the experiment was to examine whether the findings on wh-questions<br />

obtained on English-speaking Broca patients could be generalized to French. A comparison between<br />

the results obtained on both groups <strong>of</strong> patients reveals that French-speaking Broca patients score<br />

considerably lower on subject wh-questions than English-speaking Broca patients do (53,2% correct<br />

versus 80% correct respectively). This crosslinguistic difference is unexpected under the standard<br />

characterization <strong>of</strong> the comprehension deficit in Broca’s aphasia. We will argue that this difference<br />

follows from a difference in the syntactic derivation <strong>of</strong> subject wh-questions in both languages. In<br />

contrast to French subject wh-questions, English subject wh-questions do not involve movement <strong>of</strong> the<br />

wh-word, but only <strong>of</strong> its features. It will be argued that this type <strong>of</strong> movement has less effect on<br />

patients’ comprehension than movement <strong>of</strong> the entire wh-word does. This also suggests that the<br />

comprehension difficulties <strong>of</strong> Broca patients are not related to the position (subject/object) out <strong>of</strong><br />

which an element has been moved, but to the type <strong>of</strong> movement that has taken place (feature/category<br />

movement). A new characterization <strong>of</strong> the comprehension deficit in Broca’s aphasia will be proposed,<br />

relating patients’ comprehension difficulties to the type <strong>of</strong> movement through which constructions are<br />

derived. It will be shown that the findings on object questions obtained on French-speaking Broca<br />

patients are consistent with this characterization. This study shows that the use <strong>of</strong> linguistic tools<br />

<strong>of</strong>fers a new and more fine-grained description <strong>of</strong> the data <strong>of</strong> Broca patients.<br />

References<br />

[1] Caramazza, A. & E. Zurif (1976). Dissociation <strong>of</strong> algorithmic and heuristic processes in language<br />

comprehension: evidence from aphasia. Brain and Language 3, 572-582.<br />

[2] Caplan, D., C. Baker &. F. Dehaut (1985). Syntactic determinants <strong>of</strong> sentence comprehension in<br />

aphasia. Cognition 21, 117-175.<br />

[3] Grodzinsky, Y. (1989) Agrammatic comprehension <strong>of</strong> relative clauses. Brain and Language 37,<br />

480-499.<br />

[4] Hickok, G. & S. Avrutin (1996). Comprehension <strong>of</strong> wh-questions in two Broca’s aphasics. Brain<br />

and Language 52, 314-327.<br />

[5] Thompson, C., M. Tait, K. Ballard & S. Fix (1999). Agrammatic aphasic subjects’ comprehension<br />

<strong>of</strong> subject and object extracted wh-questions. Brain and Language 67, 169-187.


[6] Avrutin, S. (2000). Comprehension <strong>of</strong> Discourse-linked and non-Discourse-linked questions by<br />

children and Broca’s aphasics. In: Y. Grodzinsky, L. Shapiro & D. Swinney (eds.), Language and<br />

the Brain: Representation and Processing. San Diego: Academic Press.


Formulaic language in spontaneous speech <strong>of</strong> left- and right hemisphere-damaged subjects<br />

Diana Van Lancker Sidtis & Whitney Anne Postman<br />

New York University, NKI, & NIH/NIDCD<br />

The notion that nonnovel or formulaic language (FL) may be processed in the brain differently from novel<br />

expressions is based on observations in aphasia and from comprehension studies <strong>of</strong> right hemisphere (RH)<br />

damaged patients. In normal subjects, counting (Van Lancker, et al., 2003), idioms (Kempler, et al., 1999), and<br />

proper nouns (Ohnesorge & Van Lancker, 2001) may be represented in both cerebral hemispheres.<br />

The relationship <strong>of</strong> production to comprehension among varieties <strong>of</strong> FL remains unclear. Comprehension <strong>of</strong><br />

familiar proper nouns occurs in both hemispheres <strong>of</strong> normal subjects (Ohnesorge &Van Lancker, 2001) and in<br />

LH damage (Van Lancker & Klein, 1990) suggesting a role <strong>of</strong> the RH. In contrast, deficient production <strong>of</strong><br />

famous names occurs following LH damage (Semenza, et al., 1995).<br />

Interest in FL has grown (Wray, 2002). Our goal was to examine the spontaneous speech <strong>of</strong> persons with<br />

unilateral brain damage. We questioned whether classes <strong>of</strong> FL would be selectively preserved, deficient, or<br />

otherwise unusual.<br />

Method<br />

Natural speech samples were collected from 5 patients with aphasia due to LH damage, 5 patients with RH<br />

damage, and 5 neurologically intact normal-control subjects (NC). LH damaged subjects, including one anomic<br />

and four with Wernicke’s aphasia, ranged in age from 49-76 (mean 62.8), average education <strong>of</strong> 12.6 years; RH<br />

subjects’ age ranged from 41-70 (mean 59.4) with 12.2 years <strong>of</strong> education; NC subjects were 46-78 years <strong>of</strong> age<br />

(mean = 63.6), educated at 15.2 years. All were male except for 2 NCs.<br />

Written transcripts <strong>of</strong> spontaneous speech, in which subjects described their family and work, were searched by<br />

two independent raters. RH patients’ texts contained a mean <strong>of</strong> 614.6 words (range = 325-1030), with a mean<br />

length <strong>of</strong> utterance (MLU) <strong>of</strong> 11 words; LH subjects’ texts averaged 433.6 (range = 257-587), MLU <strong>of</strong> 8.8; NC<br />

texts = 518 words (range 367-1022 words), and a MLU <strong>of</strong> 10.2.<br />

Seven FL categories were chosen for this analysis: fixed expressions (speech formulas: \"let’s see\";<br />

conventional expressions: \"as a matter <strong>of</strong> fact\"), sentence stems (\"I guess…\"), discourse particles (\"well\"),<br />

pause fillers (\"uh\"), dyads/triads (e.g., \"pepper and salt\"), proper name, and numerals. Criteria developed in<br />

Van Lancker-Sidtis and Rallon (2004) aided in identifying the exemplars.<br />

Results<br />

The proportions <strong>of</strong> words in the texts comprising FL were compared across groups, revealing the fewest for the<br />

RH group: 16.5% for RH, 29.5% for LH, and 24.6% for NC. A one-way ANOVA revealed a significant main<br />

effect <strong>of</strong> group (F (2,12) = 7.343, p


Semenza, C., et al. (1995). The anatomical basis <strong>of</strong> proper names processing: a critical review. Neurocase: Case<br />

Studies in Neuropsychology, Neuropsychiatry, and Behavioural Neurology, 1(2), 183-188.<br />

Van Lancker, D. & Klein, K. (1990). Preserved recognition <strong>of</strong> familiar personal names in global aphasia. Brain<br />

and Language, 39, 511-529.<br />

Van Lancker, D., et al. (2003). PET activation studies comparing two speech tasks widely used in surgical<br />

mapping. Brain and Language, 85, 245-261.<br />

Van Lancker-Sidtis, D. & Rallon, G. (2004) Tracking the incidence <strong>of</strong> formulaic expressions in everyday<br />

speech: methods for classification and verification. To appear in Language and Communication.<br />

Van Lancker-Sidtis, D. (2004). When novel sentences spoken or heard for the first time in the history <strong>of</strong> the<br />

universe are not enough: toward a dual-process model <strong>of</strong> language. IJLC D, 39 (1), 1-44.<br />

Wray, A. (2002). Formulaic language and the lexicon. Cambridge: Cambridge University Press.


The breakdown <strong>of</strong> functional categories in Greek aphasia<br />

Natalia Valeonti, Alexandra Economou, Maria Kakavoulia, Athanassios Protopapas, Spyridoula Varlokosta<br />

Panteion University, University <strong>of</strong> Athens, Panteion University, Institute for Language & Speech Processing,<br />

University <strong>of</strong> the Aegean and University <strong>of</strong> Reading<br />

Background and research questions<br />

Verbal inflectional errors are among the most prominent characteristics <strong>of</strong> aphasic non-fluent speech (e.g.,<br />

Goodglass, 1976). However, a number <strong>of</strong> studies have shown that such impairment is selective and that not all<br />

verbal inflectional morphemes are equally disturbed. Subject-verb agreement is relatively intact (e.g. De Bleser<br />

& Luzzatti, 1994) while tense is severely impaired (e.g. Friedmann & Grodzinsky, 1997). Two types <strong>of</strong> accounts<br />

have been proposed to explain these findings. Some researchers view the deficit that non-fluent individuals<br />

exhibit as structural and thus attribute verbal inflectional errors to a breakdown <strong>of</strong> functional categories and their<br />

projections. Specifically, Friedmann & Grodzinsky (1997) and Grodzinsky (2001) have argued that impairment<br />

in agrammatic production can be characterised in terms <strong>of</strong> a deficit in the syntactic tree. Agrammatic individuals<br />

produce trees that are intact up to the Tense node and ‘pruned’ from this node up. Other researchers have<br />

suggested that difficulties in the production <strong>of</strong> particular inflectional morphemes are due to processing<br />

limitations (e.g., Crain, Ni, & Shankweiler, 2001). Within such accounts, grammatical representations are intact<br />

but access to them is impaired. The asymmetry in the performance <strong>of</strong> aphasic individuals on production vs.<br />

grammaticality judgement tasks has been taken as further evidence for such approaches (Linebarger, Schwartz,<br />

& Saffran, 1983).<br />

The purpose <strong>of</strong> the present study was to investigate functional categories in Greek aphasia across<br />

different tasks. Specifically, in order to contrast structural and processing theoretical approaches to<br />

morphological impairments in aphasia, we investigated (a) the relative sensitivity <strong>of</strong> functional categories to<br />

brain damage and the systematicity there<strong>of</strong>; and (b) the relation between production and comprehension<br />

performance.<br />

Greek language<br />

(Modern) Greek is a null-subject language with rich morphology and relatively free word order. The Greek<br />

verbal paradigm distinguishes six person inflections, and also makes an aspectual distinction between perfective<br />

and imperfective aspect, which surfaces in the verb stem. The aspectual distinction shows up in the past tense<br />

and in the future. There is no aspectual distinction in the present tense, which always uses the imperfective stem.<br />

Given the richness <strong>of</strong> the Greek inflectional paradigm, several functional categories are instantiated in the<br />

extended projection <strong>of</strong> the Greek verb (Philippaki-Warburton, 1987). The order <strong>of</strong> these categories though<br />

remains quite controversial. According to Philippaki-Warburton (1998) and Alexiadou & Anagnostopoulou<br />

(1996), AgrP is higher than TP (but not according to Tsimpli, 1990). Therefore, the likely clause structure for<br />

Greek is:<br />

(1) CP > MoodP > NegP > AgrP > TP > VoiceP > AspectP > VP<br />

Method<br />

Eight individuals (1 female) aged 42–81 years, clinically diagnosed with aphasia, were referred by speechlanguage<br />

pathologists to participate in the study. All had suffered a left-hemisphere cerebrovascular accident 3 or<br />

more months before testing. Their fluency was assessed using a simple speech rate measurement, there being no<br />

standardised testing materials in the Greek language. Each participant was tested for comprehension, using a<br />

grammaticality judgment task, and for production, using a sentence completion task and a picture description<br />

task (cookie theft and a store situation). Grammaticality judgment and sentence completion used the same set <strong>of</strong><br />

sentences, in different sessions, to ensure comparability <strong>of</strong> comprehension and production measurements. The<br />

sentences were constructed to assess three functional categories: (a) subject-verb agreement (32 items); (b) tense<br />

(16 items); and (c) aspect (32 items). The number <strong>of</strong> trials for the grammaticality judgment was double that for<br />

production in order to include an equal number <strong>of</strong> incorrect sentences. Eight verbs were used to construct the


sentences, balancing frequency <strong>of</strong> use (estimated on the basis <strong>of</strong> subjective familiarity measured on an<br />

independent sample) and regularity <strong>of</strong> aspectual conjugation.<br />

Results<br />

The table shows the proportion <strong>of</strong> incorrect responses for each participant, separately for each task and<br />

functional category. The most striking observation is the range <strong>of</strong> ability exhibited by this participant group,<br />

from flawless performance (Participant 5, especially production) to total inability to perform the task (Participant<br />

6, no production at all). However, in this diverse group, several systematic patterns emerge upon closer<br />

inspection.<br />

Grammaticality judgment Sentence completion<br />

Patient Agreement Tense Aspect Agreement Tense Aspect<br />

1 3.1 0.0 17.2 15.6 12.5 43.8<br />

2 43.8 62.5 43.8 40.6 93.8 81.3<br />

3 17.2 56.3 46.9 28.1 81.3 56.3<br />

4 1.6 50.0 48.4 56.3 68.8 68.8<br />

5 0.0 3.1 1.6 0.0 0.0 0.0<br />

6 23.4 56.3 48.4 – – –<br />

7 3.1 0.0 10.9 9.4 0.0 12.5<br />

8 0.0 28.1 32.8 15.6 12.5 37.5<br />

All 11.5 32.0 31.3 23.7 38.4 42.9<br />

Discussion<br />

Performance on subject-verb agreement tends to be least impaired, accounting for up to 23% <strong>of</strong> an individual’s<br />

total errors in comprehension and up to 49% in production. Tense and aspect are more impaired, with errors in<br />

aspect ranging from 33% to 85% <strong>of</strong> an individual’s comprehension errors and from 34% to 61% in production.<br />

Tense errors are particularly interesting, in that they make up only a small proportion <strong>of</strong> the total individual<br />

errors <strong>of</strong> the least impaired participants (1, 7, and 8) but a large proportion <strong>of</strong> the total individual errors, even<br />

more than aspect errors, for the most impaired participants (2, 3, and 4).<br />

Given the clause structure <strong>of</strong> Greek shown in (1), a structural account such as the tree pruning hypothesis would<br />

predict that aspect would be least impaired while subject-verb agreement would be more (if not most) impaired,<br />

a pattern opposite from the one observed. Therefore, our findings do not support this hypothesis. Taking into<br />

account that we found a higher proportion <strong>of</strong> production than comprehension errors in almost every case, our<br />

results would seem to be most compatible with some processing accounts.<br />

Our findings are consistent with the conclusions <strong>of</strong> Stavrakaki & Kouvava (2003), who found that “high or low<br />

tree position in the sentence hierarchy was not the only determinant <strong>of</strong> the aphasic performance,” and attributed<br />

the aphasics’ difficulties to impaired access rather than impaired grammatical representations. Similarly,<br />

Tsapkini, Jarema, & Kehayia (2001) proposed a computational load deficit to account for their observations<br />

regarding inflectional impairments in the Greek verb on repetition, reading, and elicitation tasks.


Interpretation <strong>of</strong> pronouns in VP-ellipsis constructions in Dutch agrammatism<br />

Nada Vasic, Esther Ruigendijk, Sergey Avrutin<br />

UiL OTS, Utrecht University<br />

The results <strong>of</strong> the studies on reference assignment in agrammatism point towards a selective impairment (e.g.<br />

Grodzinsky et al., 1993). Agrammatic patients have fewer problems when interpreting reflexives (herself) in<br />

simple transitive sentences then when interpreting pronouns (her) in the same constructions. The results <strong>of</strong> our<br />

previous studies (Ruigendijk, et al. in press) indicate that the impairment <strong>of</strong> pronouns depends on the<br />

grammatical level at which the operations <strong>of</strong> assigning the referent to the pronoun occur. In the Primitives <strong>of</strong><br />

Binding (Reuland, 2001) a hierarchy <strong>of</strong> levels at which reference can be established is put forth for non-braindamaged<br />

speakers. According to Reuland, syntactic dependencies are the most economical, and therefore, block<br />

the less economical ones, such as semantic and discourse dependencies. Our previous findings show that this<br />

hierarchy is disturbed in agrammatism: syntax is “weakened” and no longer blocks the establishment <strong>of</strong><br />

dependencies at other levels.<br />

The main question for this study is:<br />

How is the economy hierarchy in agrammatism different from that in the unimpaired population, which is:<br />

syntax → semantics → discourse?<br />

In order to determine the relative hierarchy <strong>of</strong> the semantic and discourse operations in agrammatism, we<br />

investigated patients’ comprehension <strong>of</strong> VP-ellipsis constructions exemplified in (1).<br />

(1) Bill touched his dog and John did too [e].<br />

This sentence has two possible interpretations representing precisely the focus <strong>of</strong> our study. The semantic<br />

interpretation (derived from the bound variable anaphora) is represented in (2) and treats the pronouns as a<br />

variable that is assigned reference locally, i.e. in the first conjoint the local NP Bill and in the second conjunct<br />

NP John. (Where λ is an abstract semantic operator.)<br />

(2) Bill ( λx (x touches x’s dog)) and John (λx (x touches x’s dog))<br />

‘Billl touches Bill’s dog and John touches John’s dog<br />

The discourse interpretation (derived from coreference) exemplified in (3) implies that the pronoun is<br />

assigned a discourse referent in the first conjunct, NP Bill in this case, and that the whole VP is then<br />

copied in the second conjunct.<br />

(3) Bill ( λx (x touches z’s dog) & z=Bill) and John (λx (x touches z’s dog) & z=Bill)<br />

Bill touches Bill’s dog and John touches Bill’s dog<br />

Thus, constructions <strong>of</strong> type (1) will allow us to see whether both semantic and discourse dependencies are<br />

equally available in agrammatism, and which <strong>of</strong> the two is preferred.<br />

Method<br />

We tested four agrammatic patients (for now) and eight non-brain-damaged adults. In a picture selection task the<br />

participants were presented with the target sentence orally and then asked to choose one out <strong>of</strong> three pictures that<br />

corresponds best to the sentence they heard. The experiment consisted <strong>of</strong> three conditions with 10 items per<br />

condition and 30 filler sentences (total 60 items). In the first half <strong>of</strong> the experiment patients were presented with<br />

the following conditions:<br />

BOUND VARIABLE ONLY (BVonly)<br />

The boy touches his dog and the man does too.<br />

Picture 1: boy touching boy’s dog and the touching man’s dog (grandfather standing next to them with his own<br />

dog)<br />

Picture 2: boy touching boy’s dog and man touching grandfather’s dog.<br />

Picture 3: filler


If the bound variable interpretation (semantic dependency) is available Picture 1 should be chosen; otherwise<br />

they could chose action related filler – Picture 2 or an unrelated distracter Picture 3.<br />

COREFERENCE ONLY (COonly)<br />

The girl touches her horse and the woman does too.<br />

Picture 1: girl is touching girl’s horse and woman is touching girl’s horse (grandmother standing next to them<br />

with her own horse)<br />

Picture 2: girls touching girl’s horse and woman touching grandmother’s horse.<br />

Picture 3: filler<br />

If the coreference interpretation (discourse dependency) is available Picture 1 should be chosen; otherwise they<br />

could chose action related filler – Picture 2 or an unrelated distracter Picture 3.<br />

In the second half <strong>of</strong> the experiment with the condition where they could choose between the two possible<br />

interpretations:<br />

BOUND VARIABLE vs. COREFERENCE (BVCO)<br />

The witch touches her cat and the fairy does too.<br />

Picture 1: witch touching witch’s cat and fairy touching fairy’s cat (woman standing next to them with her own<br />

cat)<br />

Picture 2: witch is touching witch’s cat and fairy is touching fairy’s cat (woman standing next to them with her<br />

own cat)<br />

Picture 3: filler<br />

Results<br />

Table 1 exhibits the overall results for both aphasics and controls. The agrammatic patients score significantly<br />

above chance the BV and CO ONLY conditions (BVonly: chi-square=9.447, p


The Role <strong>of</strong> the Verb in Dutch On-line Sentence Processing <strong>of</strong> Dutch Matrix Clauses<br />

F. Wester a , D. de Goede a , R. Bastiaanse a , L. P. Shapiro b , & D. Swinney c<br />

a Department <strong>of</strong> <strong>Linguistic</strong>s, Graduate School for Behavioural and Cognitive Neurosciences (BCN)<br />

b Department <strong>of</strong> Communicative Disorders, San Diego State University (SDSU)<br />

c Department <strong>of</strong> Psychology, University <strong>of</strong> California, San Diego (UCSD)<br />

Introduction<br />

In declarative matrix clauses in Dutch, the finite verb appears in second position, having, (according to some<br />

theories) moved from its basic sentence final position (Koster 1975). Bastiaanse et al. (2002) conducted an<br />

experiment in which Dutch Broca's aphasics produced clauses with finite verbs either in verb-second position or<br />

in their basic position. Their results show that the patients encountered fewer difficulties with finite verbs in<br />

clause-final position than with finite verbs in verb-second position. Whether these results are due to verb<br />

'movement', problems with 'traces' in general (Grodzinsky 2000) to 'tree pruning' (Friedman 2002) or more<br />

general processing strategies remains to be investigated.<br />

It is now well established that NP’s that are not in their basic position are reactivated on-line at their<br />

basic position in the sentence (e.g. Love & Swinney 1996). If displaced verbs are re-activated in their basic<br />

position like displaced NP’s, then the fact that verb-second is problematic for Broca's aphasics can be examined<br />

more closely by investigating which reactivation pattern displaced verbs show when tested on-line.<br />

Experiment 1 and Experiment 2<br />

In two cross-modal lexical priming experiments (where sentences were presented auditorily and lexical decision<br />

probes were presented visually) we examined the activation pattern for displaced verbs in Dutch. The<br />

experimental sentences in these experiments are Dutch matrix (SVO) clauses. If verb movement and NP<br />

movement are reflected similarly in psychological reality, we should expect to find activation <strong>of</strong> the verb directly<br />

after the verb (direct priming), deactivation <strong>of</strong> the verb in between the overt verb position and the gap, and<br />

finally reactivation at the gap (gap-filling). In both experiments the matrix clause ended at the second argument.<br />

In experiment 1, the second clause was an embedded clause (1) and in experiment 2 it was coordinated (2).<br />

1. De wanhopige verslaafden beroven[1] eenzaam wande[2]lende bejaarden [GAP], omdat[3] ...<br />

(The desperate addicts rob[1] lonely stro[2]lling seniors [GAP], because[3] ...)<br />

2. De arme straatkinderen beroven[1] voornamelijk argeloze, chique gekle[2]de toeristen[3][GAP],<br />

want[4]....<br />

(The poor street urchins rob[1] mainly they don’t know how else to unwary stylishly dress[2]ed<br />

tourists[3] [GAP], because[4]....)<br />

Evidence for 'activation' was priming <strong>of</strong> related vs. control verb probes, where both probe types were matched<br />

for was extensively pre-tested for any possible inadvertent source <strong>of</strong> priming. The data was analysed using a<br />

Repeated Measures ANOVA (F1 and F2) and paired t-tests (t1 and t2). In this abstract, only the results for t1 are<br />

presented.<br />

Results<br />

Neither <strong>of</strong> these experiments provided evidence for reactivation <strong>of</strong> the verb at its basic position. Instead, they<br />

both demonstrated that the verb was activated immediately and was kept active at points 700 ms later (t1 (40) =<br />

2.53, p = 0.008), 1500 ms later (t1 (56) = 2.49, p = 0.008), and on through the <strong>of</strong>fset <strong>of</strong> the object head noun (t1<br />

(56) = 2.08, p = 0.021). Evidence for activation for the verb ended immediately following the conjunction<br />

linking the matrix to the embedded clause (experiment 1: t1 (40) = 0.81, p > 0.2; experiment 2: t1 (56) = -0.98, p<br />

> 0.15). See Table 1 for (mean) reaction times.<br />

Experiment 3<br />

Because occurrence <strong>of</strong> a conjunction definitively signals that no more clausal information will be forthcoming, a<br />

third experiment employed an adjunct rather than a conjunction immediately after the second argument (3). This<br />

allowed investigation <strong>of</strong> whether saturation <strong>of</strong> the argument structure <strong>of</strong> the verb was the basis for discontinued<br />

activation <strong>of</strong> the verb, or whether only evidence that no other possible elements could occur in the clause


employing that verb caused discontinued activation. The same analyses were used as for the first two<br />

experiments.<br />

1. De domme gedetineerden beroven [1] vijftien rijke bejaarden tijdens hun [2] eerste proefverl<strong>of</strong> [3],<br />

dus…<br />

(The stupid detainees rob [1] fifteen rich seniors during their [2] first parole [3], so ...)<br />

Results<br />

In this study, verb activation was obtained shortly after the matrix verb appeared (t1 (44) = 3.08, p = 0.002), 700<br />

ms after the onset <strong>of</strong> the adjunct (at least 700 ms after the last argument had been processed) (t1 (44) = 2.35, p =<br />

0.012) and at the end <strong>of</strong> the clause (t1 (44) = 2.58, p = 0.007). See Table 1 for (mean) reaction times.<br />

Table 1. Mean reaction times, standard deviations (between brackets) and ‘priming effect’ <strong>of</strong> all probe points in<br />

three cross-modal lexical priming experiments.<br />

Experiment Probe<br />

Type<br />

Probe<br />

Point<br />

Offset<br />

finite verb<br />

700 ms<br />

down<br />

stream<br />

1500 ms<br />

down<br />

stream<br />

Offset<br />

OHN (end<br />

<strong>of</strong> clause)<br />

700 ms.<br />

into<br />

adjunct<br />

End <strong>of</strong><br />

clause<br />

Offset<br />

conjunction<br />

Exp. 1 Control 633 (68) 635 (61) 626 (72)<br />

Related 617 (65) 621 (66) 620 (73)<br />

‘priming’ 16 (41) 14 (33) 6 (47)<br />

Exp.2 Control 663 (94) 671 (99) 668 (95) 666 (88)<br />

Related 662 (91) 657 (84) 654 (101) 672 (103)<br />

‘priming’ 1 (49) 15 (45) 14 (51) -5 (42)<br />

Exp. 3 Control 721 (86) 723 (95) 712 (89)<br />

Related 697 (89) 706 (96) 693 (88)<br />

‘priming’ 24 (53) 17 (48) 19 (48)<br />

Conclusion<br />

Three cross-modal lexical priming studies reveal that displaced verbs remain active during the processing <strong>of</strong> the<br />

entire clause employing them, regardless <strong>of</strong> the position <strong>of</strong> possible gaps or (possible) arguments. In other words,<br />

Dutch SVO sentences require continued activation <strong>of</strong> the displaced finite verb, whereas SOV sentences do not. It<br />

seems likely, therefore, that the relative difficulties that Broca’s aphasics encounter with displaced finite verbs in<br />

Dutch matrix (SVO) clauses (Bastiaanse et al. 2002) cannot solely be attributed to impaired gap-filling<br />

strategies, but could also be related to the extra ‘activity’ needed to keep the displaced verb active. Further<br />

research will investigate the behaviour <strong>of</strong> Broca’s aphasics using the cross-modal lexical priming paradigm, and<br />

similar linguistic materials.<br />

References:<br />

Bastiaanse, R., Hugen, J.,Kos, M. & Van Zonneveld, R. (2002). Lexical, morphological, and syntactic aspects <strong>of</strong><br />

verb production in agrammatic aphasics, Brain and Language, 80, 142-159.<br />

Grodzinsky, J. (2000). The neurology <strong>of</strong> syntax: Language use without Broca's area, Behavioural and Brain<br />

<strong>Science</strong>s, 23, 47-117.<br />

Friedmann, N. (2002). Syntactic tree pruning and question production in agrammatism, Brain and Language,<br />

83, 117-120.<br />

Koster, J. (1975). Dutch as an SOV language, <strong>Linguistic</strong> Analysis, 1, 111-136.<br />

Love, T. and Swinney, D. (1996). Coreference processing and levels <strong>of</strong> analysis in object-relative constructions:<br />

demonstration <strong>of</strong> antecedent reactivation with the cross-model priming paradigm, Journal <strong>of</strong> Psycholinguistic<br />

Research, 25 (1), 5-24.


1. Introduction<br />

Relative Clauses and Object Scrambling In Turkish Agrammatic Production<br />

Tuba Yarbay Duman<br />

University <strong>of</strong> Groningen (graduate <strong>of</strong> EMCL)<br />

Agrammatic speakers are reported to overuse the canonical word order <strong>of</strong> their language and avoid<br />

using non-canonical or scrambled forms. The tendency to avoid non-canonical forms has been verified<br />

for SVO languages such as English, Italian, French and Chinese (Bates, Friederici, Wulfeck, & Juarez,<br />

1988), SOV languages such as Turkish (Slobin, 1991) and Dutch (Bastiaanse, Rispens, Ruigendijk,<br />

Juncos-Rabadan, & Thompson, 2002). <strong>Cross</strong>-linguistic data support the view that there is a strong<br />

relationship between the agrammatic production and syntactic dependency (Bastiaanse & van<br />

Zonneveld, 1998; Friedmann & Grodzinsky, 1997). However, the relationship <strong>of</strong> syntax to the<br />

agrammatic production lends itself to different kinds <strong>of</strong> approaches.<br />

In 1997, Friedmann and Grodzinsky proposed the Tree Pruning Hypothesis (TPH), according to<br />

which the nodes that are high in the syntactic tree, CP and TP, are unavailable for functional<br />

projections. It is not just that functional projections are impaired, but as a consequence the movement<br />

<strong>of</strong> arguments and adjuncts to the functional domains high in the syntactic tree is impaired as well<br />

(Friedmann, 2002). However, Bastiaanse and her colleagues (Bastiaanse, Rispens, Ruigendijk,<br />

Juncos-Rabadan & Thompson, 2002) argue that syntactic dependency, ‘ movement’ operation, is the<br />

only critical factor in agrammatic production regardless <strong>of</strong> the position in the syntactic tree (high or<br />

low). This is known as Verb Second Hypothesis (VSH).<br />

2. Research Question<br />

1) Why is the canonical word order simpler for agrammatic aphasics?<br />

2) What would be the implications <strong>of</strong> movement operations low in the syntactic tree for agrammatic<br />

aphasia?<br />

We concentrated on two types <strong>of</strong> movement operations low (IP) in the syntactic tree: Turkish relative<br />

clauses and object scrambling (Aygen, 2002). A total <strong>of</strong> 4 agrammatic speakers participated in this<br />

study.<br />

3. Study 1: Relative Clauses<br />

We compared the production <strong>of</strong> regular sentences with relative clauses (RCs).For subject RCs , the<br />

participle (P) suffix –(y)An is used and the subject is moved to the end <strong>of</strong> the clause. For object RCs,<br />

the participle suffix –DIK is used and the object is moved to the end <strong>of</strong> the clause. Genitive suffix is<br />

attached to the subject <strong>of</strong> the RC and the possessive suffix is attached to the participle in the object<br />

RCs (Dede, 1982). Examples follow;<br />

(1) Regular SOV<br />

adam ekmek-i kes-iyor<br />

man bread-Acc cut-3 rd prs.<br />

‘the man cuts the bread’<br />

(2) Subject RC<br />

[ Øi ekmek-i kes- en ] adami ]


Ø bread-acc cut-SbjP man<br />

[ RC O V [ S]<br />

“the man who cuts / cut the bread”<br />

(3) Object RC<br />

[adam-ın Øi kes-tiğ- i ] ekmeki ]<br />

man-Gen. Ø Cut-ObjP-Poss bread<br />

[RC S V ] O ] ]<br />

“the bread that the man cut/cuts”<br />

The sentence completion test was adapted from Bastiaanse, Hugen, Kos and van Zonneveld, 2002.<br />

There were three conditions:<br />

(a) regular clause that should be completed with the canonical word order, SOV (no movement)<br />

(b) subject RC condition that should be completed with an NP[object- non-finite verb] subject]]<br />

(+ movement)<br />

(c) object RC condition that should be completed with an NP [subject- non-finite verb] object]]<br />

(+ movement). An example follows;<br />

Subject RC Condition (+ movement)<br />

tester: Bu adam domatesi kesiyor ve bu adam ekmeği kesiyor. Yani, bu domatesi kesen adam ve bu<br />

……[patient: ekmeği kesen adam]<br />

tester: This is the man the tomato cuts and this is the man the bread cuts. So, this is the tomato<br />

cutting man and this….[the bread cutting man]<br />

“this man cuts the tomato and this man cuts the bread. So, this is the man who cuts the tomato and this<br />

is the man who cuts the bread”.<br />

Results<br />

We found a significant difference between the production <strong>of</strong> regular sentences and subject / object<br />

RCs (x 2 = 19.40, df = 2, p< 0.05). The production <strong>of</strong> subject RC is significantly poorer than the regular<br />

sentence condition (x 2 = 5.2, df = 1, p< 0.05). The production <strong>of</strong> object RCs is significantly poorer<br />

than regular sentence condition (x 2 = 17.81, df = 1, p< 0.05).There is a higher performance in subject<br />

RCs compared to object RCs, however the difference does not reach to significance (x 2 = 3.38, df = 1,<br />

p ≥ 0.05).<br />

4. Study 2: Object Scrambling<br />

The canonical position <strong>of</strong> adverbs in Turkish is just before the verb (Wilson & Saygın, 2001).<br />

However, the definite object can move over the adverb. This is called “object scrambling”. The same<br />

methodology was used to test object scrambling.<br />

a. Unscrambled


Results<br />

[S Bu adam [DO kadını [ADV neşeyle [V selamlıyor ]]]<br />

This man woman-acc joy-IC greet-progr.<br />

“This man greets the woman joyfully”<br />

b. Scrambled<br />

[S Bu adam [ADV neşeyle [DO kadını [V selamlıyor]]]<br />

This man joy-IC woman-acc greet-progr.<br />

* “This man joyfully greets the woman”<br />

We found a significant difference between scrambled and unscrambled condition(x 2 = 10.94, df = 1,<br />

p< 0.01), the former being damaged.<br />

5. Discussion<br />

We showed that the production <strong>of</strong> non-finite subject / object relative clauses and clause internal object<br />

scrambling, which are all NP movements that are low in the syntactic tree (i.e., IP), are impaired. This<br />

is in line with VSH. The error analysis showed that Turkish agrammatic speakers are able to perform<br />

some types <strong>of</strong> movements that are high in the syntactic tree (i.e., CP): ‘post-verbal scrambling’<br />

contrary to the predictions <strong>of</strong> TPH. The results pointed to a disassociation among functional categories<br />

that preserves the higher node (i.e., CP) intact while leaving the lower node (i.e., IP) impaired.<br />

Another disassociation was traced among the members <strong>of</strong> the same category. Contrary to the<br />

predictions <strong>of</strong> TPH, none <strong>of</strong> the subjects made tense errors. Hence, the study presents us with<br />

important cross-linguistic data on the production <strong>of</strong> verbs as well. Turkish agrammatic speakers<br />

produce finite verbs better than non-finite verbs. When they are required to use a non-finite verb, they<br />

use a finite verb with the correct tense and agreement instead. This pattern was also reported by Slobin<br />

(1991): basic verb form for Turkish agrammatic aphasics is the finite verbs (5 tensed forms). Nonfinite<br />

verbs (both infinitives and participles) hardly occur in their speech. We suggested that the<br />

difficulties that agrammatic speakers encounter may not lie in the representation <strong>of</strong> the tense node.<br />

This was further supported by the fact that the overt subject-verb agreement, as predicted by VSH, was<br />

problematic.<br />

Syntactic movements low in the syntactic tree are difficult for the agrammatic speakers <strong>of</strong><br />

Turkish, but not all word order variations are problematic.<br />

References<br />

Aygen. G. (2002). Finiteness, case and clausal architecture. Doctoral Dissertation, Harward<br />

University, Massachusets, USA.<br />

Bastiaanse, R., & van Zonneveld, R. (1998). On the relation between verb inflection and verb<br />

position in Dutch Agrammatic aphasics. Brain and Language, 64, 165-181.<br />

Bastiaanse, R., Hugen, J., Kos, M., & Zonneveld, R. (2002). Lexical, morphological, and<br />

syntactic aspects <strong>of</strong> verb production in agrammatic aphasics. Brain and Language, 80,<br />

142-159.<br />

Bastiaanse, R., Rispens, J., Ruigendijk, E., Juncos-Rabadan, O., & Thompson, C.K. (2002). Verbs:<br />

some properties and their consequences for agrammatic Broca’s aphasia. Journal <strong>of</strong><br />

Neurolinguistics, 15, 239-264.<br />

Bates, E., Friederici, A., Wulfeck, B., & Juarez, L. (1988). On the preservation <strong>of</strong> word order<br />

in aphasia: <strong>Cross</strong>-linguistic evidence. Brain and Language, 3, 323-364.


Dede, M.A. (1982). A syntactic and semantic analysis <strong>of</strong> Turkish nominal compounds. Ann<br />

Arbor: University Micr<strong>of</strong>ilms International.<br />

Friedmann, N. & Grodzinsky, Y. (1997) Tense and agreement in Agrammatic production:<br />

Pruning the syntactic tree. Brain and Language, 56, 397-425.<br />

Friedmann, N. (2002) Question production in agrammatism: The tree pruning hypothesis.<br />

Brain and Language, 80, 160-187.<br />

Slobin, D.I. (1991). <strong>Aphasia</strong> in Turkish: speech production in Broca’s and Wernicke’s<br />

patients. Brain and Language, 41, 149-164

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