Impaired central processing of emotional faces in anorexia nervosa.

Abstract:

OBJECTIVES:To elucidate the potential relationship between classification of emotional faces and impaired central processing in eating disorders and to investigate the potential mediatory role of alexithymia and depression in this relationship. METHODS:Visual-evoked potentials (VEPs) to emotional faces and classification performance were assessed in 12 anorexic females and matched healthy controls. RESULTS:Patients with anorexia nervosa showed no modulation of emotional face processing and displayed significantly increased N200 amplitudes in response to all emotional categories and decreased VEPs in response to unpleasant emotional faces in the P300 time range as compared with healthy controls. They also made more mistakes in emotional face recognition, in particular, for neutral, sad, and disgusted content. CONCLUSIONS:There are marked differences in evoked potentials and emotion recognition performances of patients with anorexia nervosa and controls in facial processing. Differences in brain dynamics might contribute to difficulties in the correct recognition of facially expressed emotions, deficits in social functioning, and in turn the maintenance of eating disorders.

journal_name

Psychosom Med

journal_title

Psychosomatic medicine

authors

Pollatos O,Herbert BM,Schandry R,Gramann K

doi

10.1097/PSY.0b013e31817e41e6

subject

Has Abstract

pub_date

2008-07-01 00:00:00

pages

701-8

issue

6

eissn

0033-3174

issn

1534-7796

pii

PSY.0b013e31817e41e6

journal_volume

70

pub_type

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