The effects of psychotherapy treatment on outcome in bulimia nervosa: Examining indirect effects through emotion regulation, self-directed behavior, and self-discrepancy within the mediation model

Autor:	Kelly C. Berg, Carol B. Peterson, Ross D. Crosby, James E. Mitchell, Erin C. Accurso, Marjorie H. Klein, Tracey L. Smith, Stephen A. Wonderlich, Anna C. Ciao, Jason M. Lavender, Scott J. Crow
Rok vydání:	2017
Předmět:	050103 clinical psychology Mediation (statistics) Psychotherapist Binge eating Bulimia nervosa medicine.medical_treatment 05 social sciences Treatment outcome medicine.disease Outcome (game theory) 030227 psychiatry Cognitive behavioral therapy 03 medical and health sciences Psychiatry and Mental health 0302 clinical medicine Treatment targets medicine 0501 psychology and cognitive sciences medicine.symptom Psychology Clinical psychology
Zdroj:	International Journal of Eating Disorders. 50:636-647
ISSN:	0276-3478
DOI:	10.1002/eat.22669
Popis:	Objective The purpose of this investigation was to examine the indirect effects of Integrative Cognitive-Affective Therapy (ICAT-BN) and Cognitive-Behavioral Therapy-Enhanced (CBT-E) on bulimia nervosa (BN) treatment outcome through three hypothesized maintenance variables: emotion regulation, self-directed behavior, and self-discrepancy. Method Eighty adults with BN were randomized to 21 sessions of ICAT-BN or CBT-E. A regression-based bootstrapping approach was used to test the indirect effects of treatment on outcome at end of treatment through emotion regulation and self-directed behavior measured at mid-treatment, as well as the indirect effects of treatment at follow-up through emotion regulation, self-directed behavior, and self-discrepancy measured at end of treatment. Results No significant differences in outcome between treatment conditions were observed, and no significant direct or indirect effects were found. Examination of the individual paths within the indirect effects models revealed comparable treatment effects. Across treatments, improvements in emotion regulation and self-directed behavior between baseline and mid-treatment predicted improvements in global eating disorder scores but not binge eating and purging frequency at end of treatment. Baseline to end of treatment improvements in emotion regulation and self-directed behavior also predicted improvements in global eating disorder scores at follow-up. Baseline to end of treatment improvements in emotion regulation predicted improvements in binge eating and baseline to end of treatment increases in positive self-directed behavior predicted improvements in purging at follow-up. Discussion These findings suggest that emotion regulation and self-directed behavior are important treatment targets and that ICAT-BN and CBT-E are comparable in modifying these psychological processes among individuals with BN.
Databáze:	OpenAIRE
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