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J Korean Neuropsychiatr Assoc. 1998 Sep;37(5):801-810. Korean. Original Article.
Lee HS , Hyun MH , Cho HS , Lee YH , Kim TY , Chang SA , Roh KS , Jung KR , Lee MH , Yoo KJ .
Department of Psychiarty, College of Medicine, Yonsei University, Seoul, Korea.
Abstract

OBJECTIVES: The purpose of this study was to investigate the effects of cognitive differentation training of Integrated Psychological Therapy(a training program of executive function,concept formation,language,and abstraction) on micro-level cognitive function such as attention,memory and reaction time in patients with schizophrenia. METHODS: Twenty-four inpatients diagnosed as schizophrenia using DSM-lV were randomly assigned to 2 group. The training group went through a total of 12 sessions of cognitive differentiation training for 4 weeks. The control group received psychoeducation Timer of Vienna Test System were administered to all patients, both before and after the training program. RESULTS: 1) In the attention and concentration scores of Wechsler Memory Scale-Revised, between group, within group and interaction effects of training were not significant. 2) In the short-term memory scores of Wechsler Memory Scale-Revised, within group effect of training was significant(F(1,24)=15.09,p<0.05), but the between group and interaction effects did not reach significance. 3) In the long-term memory scores of Wechsler Memory Scale-Revised, within group effect of training was significant(F(1,24)=15.09,p<0.05), but the between group and interaction effects did not reach significance. 4) In the reaction time scores of Decision-Reaction Timer,interaction effect of training was significant(F(1,24)=5.18,p<0.05). 5) In the motor time scores of Decision-Reaction Timer,between group,within group and interaction effects of training were not significant. 6) In the decision time scores of Decision-Reaction Timer,interaction effect of training was significant(F(1,24)=6.00,p<0.05). CONCLUSION: Our findings suggest that cognitive differentiation training of Integrated Psychological Therapy is partly effective on improving micro-level cognitive functions such as reaction time(especially,decision time)in patients with schizophrenia.

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