Cognitive processing of anorexic patients in recognition tasks: An event-related potentials study
Article first published online: 19 MAR 2003
Copyright © 2003 Wiley Periodicals, Inc.
International Journal of Eating Disorders
Volume 33, Issue 3, pages 299–307, April 2003
How to Cite
Dodin, V. and Nandrino, J.-L. (2003), Cognitive processing of anorexic patients in recognition tasks: An event-related potentials study. Int. J. Eat. Disord., 33: 299–307. doi: 10.1002/eat.10145
- Issue published online: 19 MAR 2003
- Article first published online: 19 MAR 2003
- Manuscript Accepted: 3 JUL 2002
- anorexia nervosa;
- cognitive functions;
- event-related potentials;
We used event-related potentials (ERPs) to test whether anorexic subjects have difficulties in filtering out irrelevant stimuli in controlled information processing tasks.
ERPs from 12 anorexic patients were recorded during recognition of simple and complex body images and simple and complex geometrical shapes.
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.
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. © 2003 by Wiley Periodicals, Inc. Int J Eat Disord 33: 299–307, 2003.