• Jeffrey D Wardell, Jennifer P Read, and Craig R Colder.
• The State University of New York at Buffalo, 206 Park Hall, Buffalo, NY 14260, USA. jwardell@buffalo.edu
• Addict Behav. 2013 Nov 1;38(11):2772-81.

AbstractThe behavioral inhibition system (BIS) and behavioral approach system (BAS) are thought to influence sensitivity to reinforcement and punishment, making them useful for predicting mood-related drinking outcomes. This study provided the first examination of BIS and BAS as moderators of longitudinal within-person associations between mood and alcohol-related consequences in college student drinkers. Participants (N = 637) at two public U.S. universities completed up to 14 online surveys over the first three years of college assessing past-month general positive and negative moods, as well as past-month alcohol use and consequences. BIS and BAS were assessed at baseline. Using multilevel regression, we found that BIS and BAS moderated the within-person associations between negative mood and alcohol consequences. For students high on BIS only, high on BAS only, or high on both BIS and BAS, within-person increases in negative mood were associated with greater alcohol consequences in the first year of college. However, these negative mood-alcohol consequence associations diminished over time for students high on BIS and low on BAS, but remained strong for students high on both BIS and BAS. Within-person associations between positive mood and alcohol consequences changed from slightly positive to slightly negative over time, but were not moderated by BIS or BAS. Findings suggest that BIS and BAS impact the within-person association between general changes in negative mood and negative alcohol consequences, working jointly to maintain this relationship over time.© 2013.

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