作者
Peter J Uhlhaas, William A Phillips, Gordon Mitchell, Steven M Silverstein
发表日期
2006/12/7
期刊
Psychiatry research
卷号
145
期号
2-3
页码范围
105-117
出版商
Elsevier
简介
This study evaluated visual perceptual grouping in schizophrenia to test the hypothesis that the disorganization syndrome in schizophrenia is related to a deficit in cognitive coordination. Perceptual grouping was examined with three psychophysically well-controlled tasks in patients with disorganized schizophrenia (n=11), non-disorganized schizophrenia (n=24), psychotic disorders other than schizophrenia (n=31) and non-psychotic psychiatric disorders (n=35). These measures assessed processing of both concurrent and preceding stimulus context. Deficits in perceptual grouping were observed on all three tasks in disorganized schizophrenia patients. Dysfunctional perceptual grouping mechanisms produced both enhanced and impaired task performance suggesting that the pattern of performance observed was the result of a specific deficit in the grouping of stimulus elements. We interpret these data as further …
引用总数
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PJ Uhlhaas, WA Phillips, G Mitchell, SM Silverstein - Psychiatry research, 2006