Examining the Effects of Ostracism and Overinclusion in the Eating Disorder Binge Spectrum: Evidence From a Controlled Cyberball Task

Objective: Eating disorders (ED), including bulimia nervosa (BN) and binge eating disorder (BED), are characterised by dysfunctional eating behaviours and maladaptive emotional regulation tied to concerns about body image. This study investigates the emotional and cognitive impacts of social exclusion and overinclusion on individuals with ED using the Cyberball task, a computerised simulation of social interaction, to examine the role of early maladaptive schemas (EMS) in these responses. Method: The sample included 124 women: 34 with BN, 26 with BED, and 64 controls, assigned to either an ostracism or overinclusion condition. Emotional responses were measured using PANAS before and after the Cyberball task, and EMS were assessed via the Young Schema Questionnaire. Mediation models were applied to explore EMS effects on emotional responses. Results: Participants with ED showed unique emotional patterns compared to controls across both Cyberball conditions. In the overinclusion conditio...