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Am J Psychiatry 1996; 153:1178-1184
Copyright © 1996 by American Psychiatric Association
Sex differences in neuropsychological functioning among schizophrenic patients
RR Lewine, EF Walker, R Shurett, J Caudle and C Haden
Department of Psychiatry and Behavioral Sciences, School of Medicine, Emory University, Atlanta, GA 30322, USA. sdprrj@emory.edu
OBJECTIVE: The view of schizophrenic men as having poorer premorbid
development, earlier age at onset, and worse outcome than schizophrenic
women predicts greater neuropsychological impairment in the former than the
latter. The authors examined in detail neuropsychological functioning in a
large group of schizophrenic patients and a healthy comparison group.
METHOD: Neuropsychological functioning in 132 male and 63 female patients
with schizophrenia or schizoaffective disorder was extensively studied and
compared with that of 99 (40 male, 59 female) healthy individuals. RESULTS:
As expected, the schizophrenic patients as a group were pervasively and
significantly more impaired than the comparison group. Within
schizophrenia, in contrast to the prediction, women performed significantly
more poorly than men in verbal memory, spatial memory, and visual
processing. Female schizophrenic patients also had significantly poorer
right than left hemisphere performance, whereas male schizophrenic patients
had identical scores for right and left hemisphere impairment. CONCLUSIONS:
The findings are consistent with the hypothesis that schizophrenia among
women may be partially understood as a right hemisphere dysfunction.
Sampling, diagnostic, and epidemiologic factors may have affected the
results.
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