Cognitive flexibility in anorexia nervosa and bulimia nervosa

K Tchanturia; M B Anderluh; R G Morris; S Rabe-Hesketh; D A Collier; P Sanchez; J L Treasure

doi:10.1017/S1355617704104086

Cognitive flexibility in anorexia nervosa and bulimia nervosa

K Tchanturia, M B Anderluh, R G Morris, S Rabe-Hesketh, D A Collier, P Sanchez, J L Treasure

Research output: Contribution to journal › Article › peer-review

218 Citations (Scopus)

Abstract

The aim of this study was to determine if there are differences in cognitive flexibility in anorexia nervosa and bulimia nervosa. Fifty-three patients with an eating disorder (34 with anorexia nervosa and 19 with bulimia nervosa) and 35 healthy controls participated in the study. A battery of neuropsychological tests for cognitive flexibility was used, including Trail Making B, the Brixton Test, Verbal Fluency, the Haptic Illusion Test, a cognitive shifting task (CatBat) and a picture set test. Using exploratory factor analysis, four factors were obtained: 1: Simple Alternation; 2: Mental Flexibility; 3: Perseveration; and 4: Perceptual Shift. Patients with anorexia nervosa had abnormal scores on Factors 1 and 4. Patients with bulimia nervosa showed a different pattern, with significant impairments in Factors 2 and 4. These findings suggest that differential neuropsychological disturbance in the domain of mental flexibility/rigidity may underlie the spectrum of eating disorders.

Original language	English
Pages (from-to)	513 - 520
Number of pages	8
Journal	Journal of the International Neuropsychological Society
Volume	10
Issue number	4
DOIs	https://doi.org/10.1017/S1355617704104086
Publication status	Published - Jul 2004

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abstract = "The aim of this study was to determine if there are differences in cognitive flexibility in anorexia nervosa and bulimia nervosa. Fifty-three patients with an eating disorder (34 with anorexia nervosa and 19 with bulimia nervosa) and 35 healthy controls participated in the study. A battery of neuropsychological tests for cognitive flexibility was used, including Trail Making B, the Brixton Test, Verbal Fluency, the Haptic Illusion Test, a cognitive shifting task (CatBat) and a picture set test. Using exploratory factor analysis, four factors were obtained: 1: Simple Alternation; 2: Mental Flexibility; 3: Perseveration; and 4: Perceptual Shift. Patients with anorexia nervosa had abnormal scores on Factors 1 and 4. Patients with bulimia nervosa showed a different pattern, with significant impairments in Factors 2 and 4. These findings suggest that differential neuropsychological disturbance in the domain of mental flexibility/rigidity may underlie the spectrum of eating disorders.",

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AU - Tchanturia, K

AU - Anderluh, M B

AU - Morris, R G

AU - Rabe-Hesketh, S

AU - Collier, D A

AU - Sanchez, P

AU - Treasure, J L

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Cognitive flexibility in anorexia nervosa and bulimia nervosa

Abstract

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