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. 2009 May;31(4):455-61.
doi: 10.1080/13803390802251378.

An examination of decision making in bulimia nervosa

Pei-Chi Liao  1 , Rudolf Uher, Natalia Lawrence, Janet Treasure, Ulrike Schmidt, Iain C Campbell, David A Collier, Kate Tchanturia
Affiliations

An examination of decision making in bulimia nervosa

Pei-Chi Liao et al. J Clin Exp Neuropsychol. 2009 May.

Abstract

Background: Patients with eating disorders favor immediate gratification and ignore long-term negative consequences. This study investigated decision making in bulimia nervosa using the Iowa Gambling Task (IGT) and skin conductance responses (SCR).

Method: A total of 26 bulimia nervosa patients and 51 healthy controls took part in this study; 29 patients with anorexia nervosa were included for comparison.

Results: Bulimia nervosa patients performed poorly in the IGT, but showed no decrease in anticipatory SCR, whereas a markedly diminished anticipatory SCR was seen in the anorexia nervosa group.

Conclusions: This finding does not support the somatic marker hypothesis. Impaired decision making was associated with obsessive-compulsive traits.

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