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Titolo:
Interhemispheric cooperation during word processing: evidence for callosaltransfer dysfunction in schizophrenic patients
Autore:
Mohr, B; Pulvermuller, F; Cohen, R; Rockstroh, B;
Indirizzi:
Univ Konstanz, Dept Psychol, D-78457 Constance, Germany Univ Konstanz Constance Germany D-78457 chol, D-78457 Constance, Germany
Titolo Testata:
SCHIZOPHRENIA RESEARCH
fascicolo: 2-3, volume: 46, anno: 2000,
pagine: 231 - 239
SICI:
0920-9964(200012)46:2-3<231:ICDWPE>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
PLANUM TEMPORALE ASYMMETRY; CORPUS-CALLOSUM; LANGUAGE; BRAIN; HANDEDNESS; LATERALIZATION; INFORMATION; SIZE; KEY;
Keywords:
bilateral advantage; functional lateralization; hemispheres; interhemispheric interaction; neuropsychological deficit;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Mohr, B Univ Konstanz, Dept Psychol, POB D23, D-78457 Constance, Germany Univ Konstanz POB D23 Constance Germany D-78457 onstance, Germany
Citazione:
B. Mohr et al., "Interhemispheric cooperation during word processing: evidence for callosaltransfer dysfunction in schizophrenic patients", SCHIZOPHR R, 46(2-3), 2000, pp. 231-239

Abstract

Functional lateralization and interhemispheric interaction during word processing were investigated in schizophrenic patients (n=12) and matched healthy controls (n=18). Words and phonologically regular pseudowords were presented tachistoscopically either in the left or right visual field (unilateral conditions,ns), or simultaneously in both visual hemifields (bilateral condition). Consistent with earlier findings; healthy controls showed a right visual field advantage (RVFA), indicating left-hemispheric dominance for language. The patients showed a RVFA similar to that of controls, consistent with normal left-hemispheric language dominance. Importantly, controls performed much better on words presented in the bilateral condition, when twocopies of the same word appeared twice, compared to stimulation in only one of the visual hemifields. This bilateral advantage, which has been interpreted as evidence for cooperation between the hemispheres, was absent in schizophrenics. These data show that schizophrenic patients can exhibit similar lateralization patterns as healthy controls. Their specific functional deficit may be a lack of cooperation between the hemispheres. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 25/01/20 alle ore 16:51:59