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Schizophr Res. 2001 Dec 1;52(3):261-4.

Intact prototype learning in schizophrenia.

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University of Szeged, Department of Psychiatry, 6725 Semmelweis u. 6, Szeged, Hungary.


In this study, we examined executive functions and visual prototype learning in patients with schizophrenia (n=22) and matched healthy control subjects (n=20). The patients demonstrated marked perseveration in the Wisconsin Card Sorting Test (WCST), whereas they successfully learned prototypes of dot-pattern category exemplars. These findings are against the hypothesis of a pure generalized cognitive dysfunction in schizophrenia, providing preliminary evidence for intact neocortical mechanisms related to perceptual classification functions.

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