This study compares decision making patterns when assessed by the IGT in three different clinical samples (SUD, OB and GD) and a HC. This type of decision-making task is assessed with tests such as the Iowa Gam- Cambridge Gambling Task test (CGT). The Iowa Gambling Task (IGT) is a widely used tool to evaluate decision making, but little is known about the effect of age on its results. The Iowa gambling task (IGT) is an instrument for the neuropsychological evaluation of cognitive and emotional decision making (DM) processes that was created. The influence of age on DM, measured by the IGT, is supported by numerous studies, although some results have been controversial. . Advantageous performance on the IGT was related to specific instructional cues as well as to knowledge about the experimental purpose. This study used. Results. task, the Iowa Gambling Task (IGT). This study used the IGT and compared healthy young (n= 40) and elderly (n = 40) adults to evaluate their decision making processes. Over the past twenty years, the Iowa Gambling Task (IGT) has become a widely used tool for evaluating impairments in real-life. The changes with age. Young. J Int. The male The proposed study focuses on young adults and adolescents in the age Gambling Economía y empresa %. There were significant.