期刊
PSYCHIATRY RESEARCH
卷 110, 期 2, 页码 165-174出版社
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S0165-1781(02)00104-X
关键词
obsessive-compulsive disorder; Stroop task; Go/Nogo task; executive functioning; behavioural inhibition; cognitive inhibition
类别
Difficulty inhibiting irrelevant information may play a central role in the aetiology of obsessive-compulsive disorder (OCD). The aim of the present study was to determine whether OCD subjects (n=20) exhibit deficits in behavioural and cognitive inhibition compared with a clinical control group diagnosed with panic disorder (n=20). All subjects were administered a Go/Nogo task (a measure of behavioural inhibition) and a Stroop test (a measure of cognitive inhibition). OCD subjects made more commission errors on the Go/Nogo task, and they made more errors and displayed longer reaction times on the interference trial of the Stroop task. Trends towards correlations were observed between OCD severity scores and Stroop reaction time, where the more severe the OCD symptoms the faster was the response. No correlations between clinical symptomatology or subject demographics and the Go/ Nogo task were observed. It was demonstrated that OCD subjects exhibit deficits in behavioural and cognitive inhibition, which together may underlie the repetitive symptomatic behaviours of the disorder, such as compulsions and obsessions. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
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