Differences in self-reported decision-making styles in stimulant-dependent and opiate-dependent individuals

In light of the growing evidence of altered decision-making in addiction we assessed decision-making styles in drug-dependent individuals using the Melbourne Decision-Making Questionnaire (MDMQ). Consistent with the literature on laboratory tests of decision-making, we found that stimulant users reported less competent and more maladaptive decision-making styles compared with controls.