Background: Patients with eating disorders (ED) or obesity show difficulties in tasks assessing decision-making, set-shifting abilities and central coherence.
Aims: The aim of this study was to explore executive functions in eating and weight-related problems, ranging from restricting types of ED to obesity.
Method: Two hundred and eighty-eight female participants (75 with obesity; 149 with ED: 76 with restrictive eating, 73 with bingeing-purging symptoms; and 64 healthy controls) were administered the Wisconsin Card Sorting Test, the Iowa Gambling Task, and the Group Embedded Figures Test to assess set-shifting, decision-making and central coherence, respectively.
Results: Participants with either obesity or ED performed poorly on tests measuring executive functioning compared with healthy controls, even after controlling for age and intelligence. Both participants with obesity and participants with ED showed a preference for global information processing.
Conclusions: The findings suggest that treatments for obesity and ED would benefit from addressing difficulties in cognitive functioning, in addition to the more evident clinical symptoms related to eating, body weight and shape.
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