Delayed transition from ambiguous to risky decision making in alcohol dependence during Iowa Gambling Task

Publication year: 2011
Source: Psychiatry Research, In Press, Corrected Proof, Available online 14 June 2011

Yang-Tae, Kim , Hansem, Sohn , Jaeseung, Jeong

It has been demonstrated that alcohol-dependent patients exhibit decision-making deficits, particularly, hypersensitivity to reward and executive dysfunction. Yet, how the impaired motivational process and executive dysfunction in the patients affect decisions under ambiguity and risk with different degrees of uncertainty is little known. To investigate the neuropsychological origin of the impaired decision making under uncertainty in alcohol dependence, we administered the Iowa Gambling Task (IGT), Game of Dice Task (GDT) and Wisconsin Card Sorting Test (WCST) to 23 alcohol-dependent patients and 21 healthy subjects, and calculated the correlations between the task performances. We found that the patients showed poor performance…