Abstract

Introduction:�The aim of this study was to identify and compare cognitive impairments result- ing from schizophrenia and bipolar I disorder.

Method: It was a descriptive-comparative study on 58 male patients hospitalized in Razi Psy-chiatric�Center. Thirty-two patients were diagnosed with schizophrenia and 26 with bipolar I disorder. The Mini Mental Status Examination (MMSE) was used to assess the cognitive state of patients in 6 domains of cognitive function. The student’s t, Mann-Whitney, correlation coef- ficient and Kolmogrov-Smirnov tests were used for data analysis.

Results: Cognitive impairments were more severe in schizophrenia patients (total scores were 19.44 for schizophrenia and 22.35 for bipolar I disorder). The impairments were distinctly pro- minent in the domain of language and verbal skills.

Conclusion: Cognitive impairments are vaster and deeper in patients with schizophrenia than in bipolar I disorder.