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Titolo:
THE TIME-COURSE OF VISUOSPATIAL PROCESSING DEFICITS IN SCHIZOPHRENIA - AN EVENT-RELATED BRAIN POTENTIAL STUDY
Autore:
BRUDER G; KAYSER J; TENKE C; RABINOWICZ E; FRIEDMAN M; AMADOR X; SHARIF Z; GORMAN J;
Indirizzi:
NEW YORK STATE PSYCHIAT INST & HOSP,DEPT BIOPSYCHOL,1051 RIVERSIDE DRNEW YORK NY 10032 NEW YORK STATE PSYCHIAT INST & HOSP,DEPT CLIN PSYCHOBIOL NEW YORK NY 10032
Titolo Testata:
Journal of abnormal psychology
fascicolo: 3, volume: 107, anno: 1998,
pagine: 399 - 411
SICI:
0021-843X(1998)107:3<399:TTOVPD>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
SELECTIVE ATTENTION; COMPONENT; P300; ABNORMALITIES; ERP; ASYMMETRIES; LATERALITY; DEPRESSION; REDUCTION; ARTIFACTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Physical, Chemical & Earth Sciences
Citazioni:
59
Recensione:
Indirizzi per estratti:
Citazione:
G. Bruder et al., "THE TIME-COURSE OF VISUOSPATIAL PROCESSING DEFICITS IN SCHIZOPHRENIA - AN EVENT-RELATED BRAIN POTENTIAL STUDY", Journal of abnormal psychology, 107(3), 1998, pp. 399-411

Abstract

Event-related brain potentials (ERPs) were recorded during a dot enumeration task so as to investigate electrophysiologic correlates of early visuospatial processing in schizophrenia. Twenty-eight patients having a diagnosis of schizophrenia (n = 19) or schizoaffective disorder (n = 9) and 28 controls were tested. Patients showed poorer dot enumeration than did controls and also had markedly reduced early negative ERPs, which began about 150 ms after stimulus onset at the peak of the N1 potential and reached its maximum about 275 ms at the N2 peak. The N1 reduction in patients was greatest over left parietal sites for stimuli in the right visual field. The marked N1 and N2 reductions in patients are supportive of models postulating deficits in early visuospatial attention and allocation of conceptual resources in schizophrenia.

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Documento generato il 02/04/20 alle ore 00:03:51