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Biol Psychiatry. 2005 Feb 1;57(3):287-94.

Error-related hyperactivity of the anterior cingulate cortex in obsessive-compulsive disorder.

Author information

1
Department of Psychiatry, University of Michigan, Ann Arbor, Michigan, 48109-0118, USA.

Abstract

BACKGROUND:

Hyperactivity of the anterior cingulate cortex (ACC) in patients with obsessive-compulsive disorder (OCD) has been shown to increase with symptom provocation and to normalize with treatment-induced symptom reduction. Although the functional significance of anterior cingulate involvement in OCD remains unknown, electrophysiological evidence has linked this region to error-processing abnormalities in patients with OCD. In this functional magnetic resonance imaging (fMRI) study, we sought to further localize error-processing differences within the ACC of OCD patients compared with healthy subjects.

METHODS:

Event-related fMRI data were collected for eight OCD patients and seven healthy subjects during the performance of a simple cognitive task designed to elicit errors but not OCD symptoms.

RESULTS:

Both OCD patients and healthy subjects demonstrated dorsal ACC activation during error commission. The OCD patients exhibited significantly greater error-related activation of the rostral ACC than comparison subjects. Activity in this region was positively correlated with symptom severity in the patients.

CONCLUSIONS:

Error-processing abnormalities within the rostral anterior cingulate occur in the absence of symptom expression in patients with OCD.

PMID:
15691530
DOI:
10.1016/j.biopsych.2004.10.038
[Indexed for MEDLINE]
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