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Attentional avoidance of threats in obsessive compulsive disorder: An event related potential study
Zhang, Zhong-Ming1,3; Wang, Meng-Yun2; Guo, Xiaowei1,3; Miao, Xiaocui1,3; Zhang, Ting4; Gao, Dong4; Yuan, Zhen2
2017-10
Source PublicationBEHAVIOUR RESEARCH AND THERAPY
ISSN0005-7967
Volume97Pages:96-104
Abstract

The neural mechanism underlying attentional bias in OCD (Obsessive-Compulsive Disorder) remains unclear. The goal of this study was to examine and compare the time course and the event related potential (ERP) components in OCD patients and healthy controls (HC) to reveal the complex brain activation pattern associated with attentional bias in OCD. The behavioural and electroencephalogram (EEG) data were recorded while the participants performed an emotional Stroop task. Compared to HC, the individuals with OCD exhibited slower response time, prolonged N1 latency and larger N1 and P2 amplitudes across different emotional words. In addition, we discovered that the OCD group showed an enlarged NI component to OCD-related threat words compared to neutral words. Moreover, the OCD group had decreased P3 and later positive potential (LPP) amplitudes towards all types of words compared to the HC group. More importantly, the OCD group manifested smaller LPP amplitude to threat words compared to the HC group. Our findings suggest that OCD individuals may excessively direct their attention away from the threat at the late processing stage, probably due to the intensive processing or overestimation of the stimuli in the early automatic processing stage. (C) 2017 Elsevier Ltd. All rights reserved.

KeywordOcd Attentional Avoidance Attentional Bias Erp Emotional Stroop Task Lpp
DOI10.1016/j.brat.2017.07.011
URLView the original
Indexed BySSCI ; SSCI
Language英语
WOS Research AreaPsychology
WOS SubjectPsychology, Clinical
WOS IDWOS:000412258200010
PublisherPERGAMON-ELSEVIER SCIENCE LTD
The Source to ArticleWOS
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Health Sciences
Affiliation1.Faculty of Psychology, Southwest University (SWU), Chongqing, China
2.Bioimaging Core, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, China
3.Key Laboratory of Cognitive and Personality (SWU), Ministry of Education, Chongqing, China
4.Department of Sleep and Psychology, Daping Hospital, Research Institute of Surgery, Third Military Medical University, Chongqing, China
Recommended Citation
GB/T 7714
Zhang, Zhong-Ming,Wang, Meng-Yun,Guo, Xiaowei,et al. Attentional avoidance of threats in obsessive compulsive disorder: An event related potential study[J]. BEHAVIOUR RESEARCH AND THERAPY,2017,97:96-104.
APA Zhang, Zhong-Ming.,Wang, Meng-Yun.,Guo, Xiaowei.,Miao, Xiaocui.,Zhang, Ting.,...&Yuan, Zhen.(2017).Attentional avoidance of threats in obsessive compulsive disorder: An event related potential study.BEHAVIOUR RESEARCH AND THERAPY,97,96-104.
MLA Zhang, Zhong-Ming,et al."Attentional avoidance of threats in obsessive compulsive disorder: An event related potential study".BEHAVIOUR RESEARCH AND THERAPY 97(2017):96-104.
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