Objective. The aim of this study was to compare impulsivity and risky decision making among HIV-positive and negative heroin
dependent persons. Methods.We compared different dimensions of impulsivity and risky decision making in two groups of 60HIVpositive
and 60 HIV-negative male heroin dependent persons. Each group was comprised of equal numbers of current (treatment
seeker) and former (abstinent) heroin addicts. Data collection tools included Balloon Analogue Risk Task (BART), Iowa Gambling
Task (IGT), Barratt Impulsiveness Scale (BIS), and Zuckerman Sensation Seeking Scale (SSS). Results. In SSS, comprised of four
subscales including thrill and adventure seeking (TAS), experience seeking (ES), disinhibition (DIS), and boredom susceptibility
(BS), there was a borderline difference inDIS (
