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The Journal of Neuropsychiatry and Clinical Neurosciences, VOL. 9, No. 2

Article | May 01, 1997

The effects of clozapine on cognitive functioning in treatment- resistant schizophrenic patients

The Journal of Neuropsychiatry and Clinical Neurosciences 1997;9:240-245.

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Abstract

This study examined the cognitive functioning of 10 treatment-resistant schizophrenic patients after a minimum of a 1-year trial on clozapine. Results indicated significant improvements on prorated Wechsler Adult Intelligence Scale-Revised (WAIS-R) Full Scale, Verbal, and Performance IQs and on the WAIS-R Similarities and Digit Symbol subtests. A trend was also found for improvement on the Wisconsin Card Sorting Test. It was concluded that clozapine treatment is associated with global cognitive improvements in patients with treatment-resistant schizophrenia. Clozapine treatment may also improve performance on the Wisconsin Card Sorting Test in a subset of patients. Improvement did not appear to be related to the reduction of any cognitive effects of the typical neuroleptics upon their discontinuation.

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The effects of clozapine on cognitive functioning in treatment- resistant schizophrenic patients. The Journal of Neuropsychiatry and Clinical Neurosciences. 1997 May;9(2):240-245.

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