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Title:Negative affect and illicit substance use: The moderating role of self-control
Author(s):Bresin, Konrad
Director of Research:Verona, Edelyn
Doctoral Committee Chair(s):Verona, Edelyn
Doctoral Committee Member(s):Heller, Wendy; Federmeier, Kara; Gulley, Joshua; Lejuez, Carl
Department / Program:Psychology
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):negative affect
substance use
Abstract:Theories of substance use have historically focused on the role of negative affect and self-control, yet few studies have examined distinct aspects of self-control as moderators of link between negative affect and substance use in the participant’s natural environment. The primary goal of this study was to examine whether different aspects of self-control (monitoring, adjusting, and persisting) measured using multiple methods (self-report, psychophysiological, behavior) moderate the relation between momentary negative affect and illicit substance use in a sample of current substance users with a history of substance use disorders. I predicted that the adjusting and persisting, but not the monitoring aspects of self-control would moderate the relation between momentary negative affect and substance use, such that negative affect would be positively related to substance use at low levels of monitoring and adjusting. Of the hypotheses, the best support was for the moderating role of the adjusting aspects of self-control in the negative affect - substance use relation. Specifically, negative affect was positively related to substance use at low levels of adjusting, but negatively related substance use at high levels of adjusting. My other hypotheses received limited support. This project makes several clear additions to the substance use literature that will inform future research. Most important is the finding that the adjusting aspects of self-control seem particularly important for understanding for whom negative affect may promote substance use. Persons who adjust well, in the face of errors, may be resilient to mood-dependent substance use. The null results for the other aspects of self-control (i.e., monitoring and persistence) may suggest that these aspects are less important than adjusting among current substance users.
Issue Date:2017-09-29
Rights Information:Copyright 2018 Konrad Bresin
Date Available in IDEALS:2018-09-27
Date Deposited:2018-08

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