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

An examination of decision making in bulimia nervosa.

Author information

1
Section of Eating Disorders, Psychological Medicine, Institute of Psychiatry, King's College London, London, UK.

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.

PMID:
18720180
DOI:
10.1080/13803390802251378
[Indexed for MEDLINE]

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