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J Affect Disord ; 276: 585-591, 2020 11 01.
Article in English | MEDLINE | ID: mdl-32794449

ABSTRACT

BACKGROUND: Few evidence-based treatments for eating disorders (EDs) exist. Imaginal exposure therapy is a key component of effective treatment for anxiety disorders and post-traumatic stress disorder. However, imaginal exposure has not been systematically tested as a treatment for EDs. The current study aimed to develop and test online imaginal exposure as a treatment for EDs. METHODS: The current study tested a four-week trial of online imaginal exposure for EDs (N = 229 participants with EDs recruited globally). Participants completed diagnostic interviews and four sessions of weekly online imaginal exposure, in which they wrote about and imagined a core ED fear (identified with a therapist). Participants completed measures of ED symptoms and fears (i.e., fear of weight gain, food) at pre-imaginal exposure, post-imaginal exposure, and six-month follow-up. Participants were recruited and participated in the protocol from November 2016 to October 2018. RESULTS: All primary outcomes (ED symptoms, ED fears) significantly decreased at study completion and six-month follow-up with medium-to-large effect sizes. State anxiety across the exposure and follow-ups significantly decreased, specifically from initial sessions to follow-up. Worry, but not depression, significantly decreased. LIMITATIONS: This study was an open case trial and did not include a control condition. CONCLUSIONS: Significant decreases in ED symptoms and fears occurred during the course of imaginal exposure treatment. Online imaginal exposure is a feasible treatment for EDs and is associated with decreases in core ED symptomatology, which are comparable in magnitude to decreases seen from other evidence-based treatments. A future randomized-controlled trial is needed. CLINICAL TRIALS REGISTRATION: ClinicalTrials.gov identifier NCT03712748.


Subject(s)
Feeding and Eating Disorders , Implosive Therapy , Anxiety , Anxiety Disorders , Fear , Feeding and Eating Disorders/therapy , Humans
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