Affective Response to Binge Eating as a Predictor of Treatment Outcomes for Binge-Eating Disorder

Tyler B. Mason, Kathryn E. Smith, Lisa M. Anderson, Lauren M. Schaefer, Scott G. Engel, Scott J. Crow, Ross D. Crosby, Carol B. Peterson, Stephen A. Wonderlich

Research output: Contribution to journalArticlepeer-review

Abstract

In this report, we examined baseline affective response to binge eating as a predictor of binge-eating disorder (BED) treatment outcome. Baseline affective response was defined as (a) each individual’s average net change (i.e., area under the curve [AUC]) of positive affect (PA) or negative affect (NA) before and after binge-eating episodes and (b) slope of PA or NA after binge eating across 7 days of ecological momentary assessment. Adults with BED completed integrative cognitive-affective therapy (ICAT-BED) or cognitive behavioral therapy-guided self-help (CBT-gsh). Individuals with greater net increases in PA (AUC) after binge eating at baseline exhibited better treatment response in ICAT-BED at end of treatment and follow-up. NA affective response was significant only at end of treatment; individuals with less rapid postbinge improvements in NA (slope) did better in ICAT-BED, whereas individuals with lower net improvements in NA (AUC) did better in CBT-gsh. Affective response to binge eating may be a marker of BED treatment response.

Original languageEnglish (US)
Pages (from-to)752-760
Number of pages9
JournalClinical Psychological Science
Volume9
Issue number4
DOIs
StatePublished - Apr 13 2021

Bibliographical note

Publisher Copyright:
© The Author(s) 2021.

Keywords

  • affect
  • affective response
  • binge-eating disorder
  • ecological momentary assessment
  • treatment

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