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메스암페타민 사용자에서의 시점간 선택 특성 및 영향 요인
안상현(Sang-Hyun Ahn),김양태(Yang-Tae Kim),서상수(Sang-Soo Seo),신정욱(Jung-Uk Shin) 대한생물치료정신의학회 2017 생물치료정신의학 Vol.23 No.3
Objectives:The aims of this study were to investigate the characteristics of intertemporal choice in methamphetamine users and to examine the relationship among intertemporal choice, impulsivity and working memory. Methods:Methamphetamine users(n=37) and normal controls(n=41) were recruited. Intertemporal choice, working memory and impulsivity were assessed with the Delay Discounting Task(DDT), the Wisconsin Card Sorting Test (WCST), Barratt Impulsiveness scale(BIS). Results:The indifference point of DDT in methamphetamine users showed significant increase compared to the control group. Methamphetamine users showed higher total score on the BIS, non-planning and motor subscale and poor performance on the WCST. Statistical analysis showed no evidence of an association among value depreciation, working memory and impulsivity. Conclusion:Methamphetamine users showed delayed discounting at intertemporal choice. There was no significant correlation among delayed discounting, impaired working memory and self- report measure of impulsivity.