The present study aimed to analyze and compare the psychological profiles of two groups of traditional and industrial drug users, examining the differences in brain-behavioral systems, personality dimensions, and prosocial behavior tendencies. This causal-comparative study was conducted on 200 drug-dependent men (100 traditional drug users and 100 industrial drug users) who had referred to rehabilitation centers in Qom in 1404. The measurement tools included the Gray-Wilson Brain-Behavioral Systems Questionnaire, Cloninger Personality and Character Test, and the Revised Prosocial Behavior Scale. The findings from multivariate analysis of variance showed that industrial drug users scored significantly higher in the behavioral activation system and the approach and active avoidance subscales, while no significant differences were observed in the behavioral inhibition and conflict-avoidance systems. In terms of personality dimensions, the industrial group had higher scores in novelty seeking, harm avoidance, perseverance, self-direction, and self-transcendence, but traditional users showed superiority in the reward dependence dimension and indicators of social behavior (altruism and compliance). The results indicate that the industrial substance use pattern is associated with a more impulsive personality profile and a deeper breakdown in social functioning, while traditional users maintained social bonds and responsiveness to environmental rewards. These findings emphasize the need to review treatment protocols and design differentiated interventions based on the type of substance used and the neuro-personality underpinnings in the field of addiction psychology.
