Brain dysfunction in anorexia nervosa: cause or consequence of under-nutrition?

Hay, Phillipa J., and Sachdev, Perminder (2011) Brain dysfunction in anorexia nervosa: cause or consequence of under-nutrition? Current Opinion in Psychiatry, 24 (3). pp. 251-256.

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Abstract

Purpose of review: Imaging studies that demonstrate loss of brain substance help explain why people with anorexia nervosa have cognitive deficits and may help to elucidate the cognitive style found in many patients. It is not known whether a neurobiological vulnerability predisposes to anorexia nervosa or if this is associated with maintenance of symptoms once the illness develops.

Recent findings: Evidence emerging from functional neuro-imaging studies raise the possibility of a biological abnormality that may predispose to anorexia nervosa. Studies have found abnormal functioning in the frontal, limbic, occipital, striatal and cerebellar regions that may persist after recovery. However, most recent cross-sectional and prospective studies indicate improved cerebral activity and mixed findings in regards to neurocognitve function with recovery from anorexia nervosa.

Summary: The elucidation of the neurobiology of anorexia nervosa has benefited from recent advances in neuro-imaging and cognitive neuroscience. Further research is needed to examine the degree to which abnormalities are a consequence of starvation or are caused by a putative anorexia nervosa endophenotype.

Item ID: 17213
Item Type: Article (Refereed Research - C1)
Keywords: anorexia; brain imaging; cognition; eating disorder
ISSN: 1473-6578
Date Deposited: 25 Jan 2012 00:18
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1111 Nutrition and Dietetics > 111199 Nutrition and Dietetics not elsewhere classified @ 100%
SEO Codes: 92 HEALTH > 9204 Public Health (excl. Specific Population Health) > 920410 Mental Health @ 100%
Citation Count from Web of Science Web of Science 2
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