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Set shifting deficit in anorexia nervosa

Published online by Cambridge University Press:  17 May 2006

JOANNA E. STEINGLASS
Affiliation:
Department of Psychiatry, College of Physicians & Surgeons of Columbia University, and The New York State Psychiatric Institute, New York, New York
B. TIMOTHY WALSH
Affiliation:
Department of Psychiatry, College of Physicians & Surgeons of Columbia University, and The New York State Psychiatric Institute, New York, New York
YAAKOV STERN
Affiliation:
Department of Psychiatry, College of Physicians & Surgeons of Columbia University, and The New York State Psychiatric Institute, New York, New York Department of Neurology, College of Physicians & Surgeons of Columbia University, New York, New York

Abstract

Anorexia nervosa (AN) is a severe mental illness characterized in part by rigid thinking and ritualized behaviors involving eating and weight. Cognitive rigidity may play a role in the perpetuation of symptoms, and may provide information as to important brain-based abnormalities. Neuropsychological studies of patients with AN have shown cognitive dysfunction, but few have focused on cognitive flexibility. This study assessed set shifting in patients with AN, as a measure of cognitive flexibility. In this study, 15 patients with AN were compared with 11 healthy controls using a neuropsychological battery including the Wisconsin Card Sort Test (WCST). While patients with AN did not differ from controls on 5 measures of neuropsychological function, they made significantly more perseverative errors on the WCST, indicating a problem in set shifting. This finding suggests that patients with AN have a specific neurocognitive abnormality that may play a role in the development and persistence of this disorder. (JINS, 2006, 12, 431–435.)

Type
BRIEF COMMUNICATION
Copyright
© 2006 The International Neuropsychological Society

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