Objective: The purpose of this study was to investigate the role of brain-behavioral systems, personality traits (novelty-seeking, reward dependency) and pathological worry in tendency to addiction in university students. Method: The method used in this study was descriptive and of correlation type. All the students of Shahid Madani University of Azarbayjan in the academic year 2014-2015 constituted the statistical population of this study. From this population, the number of 150 students was selected as the participants by multistage random sampling method. For data collection purposes, Carver and White's BIS/BAS Questionnaire, Pennsylvania State Questionnaire, Cloninger's Temperament and Character Inventory of Personality, and Addiction Potential Scale were used. Results: The results showed that pathological worry and behavioral inhibition system were negatively correlated with addiction tendency whereas behavioral activating system and novelty-seeking characteristic of personality were positively correlated with addiction tendency. Conclusion: According to the obtained results, one can devise some proper solutions to prevent tendency to addiction by detecting the people with high behavioral activating system (BAS) and high novelty-seeking characteristics.
