28th International Congress of Psychology August 8 ... - U-netSURF

1 2
Norwegian University of Science and Technology, Norway; Simon Fraser University, Canada
Native Mandarin Chinese speakers’ productions of English consonant-vowel (CV) syllables
showed syllable-internal temporal adjustments in the direction of native (English)-like CVs. This
study investigates whether these temporal adjustments affect perceived nativeness. For three
production types (native-English, Chinese productions of English, native-Chinese), three
syllable-internal timing patterns (English-like, Chinese-English-like, Chinese-like) were applied,
resulting in nine stimuli types. Native English listeners judged how “English-like’ each stimulus
was on a 7-point scale. Results reveal the perceptual saliency of the temporal adjustments in
nonnative productions. The results are discussed in terms of the nonnative production-perception
relationship as well as factors affecting perceived nativeness.
1063.55 Effects of voices and spatial shift on repetition deafness, Masato Nakajima 1 , Tadashi
Kikuchi 2 , 1 University of Tsukuba, Japan; 2 University of Tsukuba, Japan
We investigated the effects of voices and spatial shift on repetition deafness (RD), using lists of 2
or 3 nonsense syllables pronounced by different speakers (males and females). The lists were
presented dichotically or binaurally. In dichotic presentation RD was observed under same-voice
and different-voice conditions. However, in binaural presentation RD was observed only under
different-voice condition. These results were incongruent with the previous findings which have
suggested that RD is robust to physical identity. We suggest that switching to different voices has
strongly influenced the recognition of repeated items.
1063.56 Cerebral correlates of rhythmic accents in auditory sequences, Renaud Brochard 1 ,
Donna Abecasis 2 , Roni Granot 2 , Carolyn Drake 3 , 1 Université de Bourgogne, Dijon, France;
2 3
Hebrew University of Jerusalem, Israel, CNRS, Université Paris, France
Recently we observed differences in the event-related potential response to loudness deviations in
isochronous sequences of identical tones. These differences in late attention-dependent
components seemed to follow a binary pattern, with larger amplitudes elicited by deviants in
odd-numbered positions. The present study was designed to test whether they corresponded to a
metrical pattern of perceived accents. We found similar responses in binary (long-short) but not
ternary (long-short-short) sequences, their amplitude being largest for “strong” beats. These results
suggest better attentional processing of the first event in each group and support the notion of a
binary default meter imposed by listeners.
1063.57 Dipole-modeling of the auditory evoked P300 and its subcomponent, Shenjun Deng,
Wen Wu, Guozhi Huang, zhujiang hospital, China
The aim of the present study was to identify the sources of these scalp recorded auditory P300 and
its subcomponents. We collected auditory ERPs using an “oddball” paradigm. A multiple
spatio-temporal equivalent dipole (ED) model was used to fit the P300 potential and its
subcomponents. The source of P300 could be accounted for 2 to 4 EDs, which were consistently
located in anterior cingulate gyrus for the earlier parts of P300 or the P3a of bifurcated P300 and
were usually located near medial temporal regions including the hippocampal formations, the
parahippocampal gyurs, the amygdala or the thalamus for the P3b.
1063.58 How do blind people make first impressions, Clare Robertson, Maria Passarvita, UK
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