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Is binge eating a cognitive disorder? Results from the International Mood Disorders Collaborative Project
Yena Lee, Nicole E Carmona, Margarita Shekotikhina
1University Health Network, Toronto, ON, Canada.
Background:
Individuals with binge eating disorder (BED) are differentially affected by attention-deficit/hyperactivity disorder (ADHD), obesity, and substance use disorder. We have investigated to what extent cognitive deficits are relevant to binge eating behavior (BEB).
Methods:
Data from the International Mood Disorders Collaborative Project were retrospectively and cross-sectionally analyzed to compare individuals with and without BEB on measures of anhedonia and general cognitive functions (n = 566). BEB was assessed using items from the Mini International Neuropsychiatric Interview Plus 5.0.0 for DSM-IV-TR that correspond with DSM-5-defined diagnostic criteria for BED. Individuals currently prescribed benzodiazepines were excluded from analyses.
Results:
Individuals with BEB were more likely to exhibit anhedonia (P = .044) and general cognitive (P = .005) symptoms, when compared to those without BEB. We also observed that individuals with BEB were more likely to have specific psychiatric (eg, ADHD) and medical (eg, obesity) disorders (P < .05).
Conclusions:
Our results suggest that a central disturbance in cognitive processes may be mechanistically relevant to the cause and treatment of BEB in adults.
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