Highlight
– Bulimia nervosa (BN) patients exhibit reduced nucleus accumbens volume and decreased cortical surface area (SA) in superior and transverse temporal cortices.
– No significant differences were observed in cortical thickness (CT) between BN patients and controls.
– Binge eating severity correlates negatively with SA in regions implicated in reward, interoception, and cognitive control.
– The findings support involvement of reward, social cognition, and control circuits in BN pathophysiology.
