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정신분열병 환자에서 아이오와도박과제를 이용한 의사결정능력의 평가
서유진, 김양태, 이양현, 박옥태, 정성훈, 김상헌, 이승재, 조경아, 곽경필, 이상희
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Abstract
Objectives: The purpose of this study was to examine the performance of schizophrenic patients on the Iowa Gambling Task(lGT). In addition, it was aimed to test whether the performance on IGT is related to working memory within schizophrenic group. Methods: Twenty-three stable schizophrenic patients and twenty-eight control subjects underwent computerized versions of the IGT and the Wisconsin Card Sorting Test(WCST). Results: Schizophrenic patients performed poorly on IGT relative to normal controls. On WCST performance, schizophrenic patients completed significantly fewer categories and made more errors than controls did. There was no significant relationship between IGT and WCST performance. Conclusion: It was suggested that schizophrenic patients have impaired decision-making and the performance on IGT is separable from cognitive functions considered to be related to dorsolateral prefrontal cortex.