Cognitive processing of anorexic patients in recognition tasks: an event-related potentials study.

Full Abstract

OBJECTIVE:
We used event-related potentials (ERPs) to test whether anorexic subjects have difficulties in filtering out irrelevant stimuli in controlled information processing tasks.

METHODS:
ERPs from 12 anorexic patients were recorded during recognition of simple and complex body images and simple and complex geometrical shapes.

RESULTS:
Anorexic subjects had larger P300 amplitudes for frequent stimuli during body images and simple geometrical shape recognition tasks. Longer P300 latencies were also found in simple geometrical shape recognition tasks, although task complexity had no effect on the P300 latency and amplitude.

DISCUSSION:
These results are explained in terms of nonspecific hyperarousal in mental anorexia and relative inability to filter out irrelevant stimuli leading to working memory saturation.Copyright 2003 by Wiley Periodicals, Inc.

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Author information

Author/s: Dodin, Vincent (V); Nandrino, Jean-Louis (JL);

Affiliation: Department of Psychiatry, St. Philibert's Hospital, Lille, France.

Journal and publication information

Publication Type: Journal Article

Journal: The International journal of eating disorders (Int J Eat Disord), published in United States. (Language: eng)

Reference: 2003-Apr; vol 33 (issue 3) : pp 299-307

Dates: Created 2003/03/25; Completed 2003/06/24; Revised 2004/11/17;

PMID: 12655627, status: MEDLINE (last retrieval date: 12/26/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adolescent
Adult
Anorexia Nervosa - psychology
Arousal
Attention

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