Hayley Treloar1, Thomas M Piasecki2,3, Denis M McCarthy2,3, Kenneth J Sher2,3, Andrew C Heath4,3. 1. Center for Alcohol and Addiction Studies, Brown University, Providence, RI, USA. 2. Department of Psychological Sciences, University of Missouri, Columbia, MO, USA. 3. Midwest Alcoholism Research Center, St Louis and Columbia, MO, USA. 4. Washington University School of Medicine, St Louis, MO, USA.
Abstract
AIMS: (1) To compare affective changes over drinking and non-drinking days among frequent drinkers and (2) to evaluate whether drinkers' expectations influence affective changes and perceived pleasure and relief from drinking. DESIGN: Observational study involving ecological momentary assessments collected via electronic diaries during the course of 3 weeks. SETTING: Drinkers' usual settings in Columbia, MO, USA. PARTICIPANTS: A total of 400 adult, frequent drinkers, aged 18-70 years. MEASUREMENTS: Ecological assessments included morning reports, pre-drinking random prompts, user-initiated first-drink reports and device-prompted follow-ups over drinking episodes. Participants rated positive (enthusiastic, excited, happy) and negative (distressed, sad) affect and perceived pleasure and relief from drinking in real time. A self-report questionnaire completed at baseline evaluated expectancies for enhanced sociability and tension reduction from drinking. FINDINGS: Relative to affective changes over non-drinking days, positive affect increased prior to drinking [95% confidence interval (CI) = 0.004, 0.023], and at first drink (95% CI = 0.238, 0.317), whereas negative affect decreased prior to drinking (95% CI = - 0.007, 0.000) and at first drink (95% CI = - 0.154, - 0.098). Sociability expectancies augmented increases in positive affect prior to drinking (95% CI = 0.009, 0.027) and at first drink (95% CI = 0.017, 0.169). Sociability expectancies also enhanced perceived pleasure from first drinks (95% CI = 0.046, 0.318). Tension-reduction expectancies attenuated decreases in negative affect at first drink (95% CI = - 0.133, - 0.029), but augmented perceived relief from first drinks (95% CI = 0.001, 0.304). CONCLUSIONS: Although theoretical models tend to focus on negative affective outcomes of drinking, changes in positive affect prior to drinking and early in drinking episodes are important for maintaining drinking behavior. Frequent drinkers' expectations for enhanced sociability or tension reduction from drinking influence their affective experiences over drinking days and perceptions of pleasure and relief from drinking.
AIMS: (1) To compare affective changes over drinking and non-drinking days among frequent drinkers and (2) to evaluate whether drinkers' expectations influence affective changes and perceived pleasure and relief from drinking. DESIGN: Observational study involving ecological momentary assessments collected via electronic diaries during the course of 3 weeks. SETTING: Drinkers' usual settings in Columbia, MO, USA. PARTICIPANTS: A total of 400 adult, frequent drinkers, aged 18-70 years. MEASUREMENTS: Ecological assessments included morning reports, pre-drinking random prompts, user-initiated first-drink reports and device-prompted follow-ups over drinking episodes. Participants rated positive (enthusiastic, excited, happy) and negative (distressed, sad) affect and perceived pleasure and relief from drinking in real time. A self-report questionnaire completed at baseline evaluated expectancies for enhanced sociability and tension reduction from drinking. FINDINGS: Relative to affective changes over non-drinking days, positive affect increased prior to drinking [95% confidence interval (CI) = 0.004, 0.023], and at first drink (95% CI = 0.238, 0.317), whereas negative affect decreased prior to drinking (95% CI = - 0.007, 0.000) and at first drink (95% CI = - 0.154, - 0.098). Sociability expectancies augmented increases in positive affect prior to drinking (95% CI = 0.009, 0.027) and at first drink (95% CI = 0.017, 0.169). Sociability expectancies also enhanced perceived pleasure from first drinks (95% CI = 0.046, 0.318). Tension-reduction expectancies attenuated decreases in negative affect at first drink (95% CI = - 0.133, - 0.029), but augmented perceived relief from first drinks (95% CI = 0.001, 0.304). CONCLUSIONS: Although theoretical models tend to focus on negative affective outcomes of drinking, changes in positive affect prior to drinking and early in drinking episodes are important for maintaining drinking behavior. Frequent drinkers' expectations for enhanced sociability or tension reduction from drinking influence their affective experiences over drinking days and perceptions of pleasure and relief from drinking.
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