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

1081.5 Interaction of brain structures in verbal functions (In normal and stuttering speakers),
Janna Glozman, Andrey Kiselnikov, Alexander Vartanov, Moscow State University. Russian
Federation
The paper is a cross-disciplinary cognitive and neural analysis of mechanisms of speech in normal
and stuttering subjects. Original method of analysis of electric brain waves images preceding
pronunciation through equivalent dipoles reveals the neural mechanisms of readiness for speech
(verbal action preparation). The preliminary cerebral activity is synchronized both with verbal
sounds perception and with word pronunciation. A comprehensive neuropsychological assessment
proves, that the neural organization of the readiness to speak is related with individual patterns of
cognitive functioning and cerebral dominance of subjects. Different inter- and intrahemispheric
interactions of brain structures realize the normal and pathological readiness potentials.
1081.6 Effects of pre-training inactivation of the striatum on over-reinforced inhibitory
avoidance, Roberto A. Prado-Alcala, Luisa E. Galindo, María E. Garín-Aguilar, Miguel A.
Díaz del Guante, Gina L. Quirarte, National University of Mexico, Inst. of Neurobiology,
Mexico
Post-training inactivation of the striatum produces amnesia of inhibitory avoidance (IA), but under
conditions of enhanced learning, post-training inactivation does not produce memory deficits. To
test whether pre-training interference with striatal activity produces equivalent effects,
tetrodotoxin (TTX, a sodium channel blocker) was administered bilaterally into the striatum 1 h
before training of one-trial IA, using low, medium, or high foot-shock; retention of the task was
measured 48 h later. Profound amnesia was found in all experimental groups. These results
strongly suggest that enhanced training does not protect against memory deficiencies induced by
pre-training inactivation of the striatum.
1081.7 Why do Chinese obey their mother?--Neuroimaging studies of Chinese self construction,
Ying Zhu, Peking University, China
Self is as culture product, then culture can inflluence self-concept. For example, most people in
Western culture hold independent self excluding mother, whereas most people in Asian culture
hold interdependent self including mother. Our fMRI study has shown that when self-encoding
condition minus other-encoding condition the medial prefrontal and cingulate activations were
observed, whereas self encoding minus mother-encoding the medial prefrontal ctivations
disappeared. These results suggest that mother-encoding may share medial prefrontal lobe with
self-encoding for Chinese subject, which provide strong evidence for interdependent self including
mother at brain level.
1081.8 An event-related potential study of picture memory encoding, Nan Qu, Aiqing Nie,
Chunyan Guo, Jinhong Ding, Capital Normal University, Beijing, China
In the present experiment, subjects viewed pictures of common objects under incidental learning
conditions in which each picture required a two-choice decision based on semantic
criteria(animal/nonanimal). Subsequently a free recall test where subjects were asked to recall the
name of the pictures was required. Event-related brain potentials elicited in response to the
original presentation of each picture were found to differ as a function of later memory
performance. Over the 400-800ms latency range, responses to remembered pictures were positive
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