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Processing angry and neutral faces in post-traumatic stress disorder: an event-related potentials study

Citation

Felmingham, KL and Bryant, RA and Gordon, E, Processing angry and neutral faces in post-traumatic stress disorder: an event-related potentials study, Neuroreport, 14, (5) pp. 777-780. ISSN 0959-4965 (2003) [Refereed Article]


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Copyright Statement

Copyright © 2003 Lippincott Williams & Wilkins, Inc.

DOI: doi:10.1097/00001756-200304150-00024

Abstract

This study examined evoked response potentials (ERPs) to angry and neutral faces in15 individuals with post-traumatic stress disorder (PTSD) and 15 age and sex-matched controls over temporal (T5,T6) and occipital (O1,O2) regions.Twenty faces with an angry expressionwere alternatedwith 20 faceswith a neutral emotional expression. There were signi¢cantly larger early negative (N110) and late negative (N650) ERP components in controls to the angry compared to the neutral faces.The PTSDgroup did notdisplay ERP di¡erences between angry and neutral faces, and the amplitude of their negativewaveformswere reduced relative to controls.These ¢ndingsmay re£ect adaptive, rapid responding to potential threat in the controls, and a reduced capacity to discriminate between non-threat and generalized threat stimuli in PTSD. NeuroReport 14:777^780c 2003 LippincottWilliams &Wilkins.

Item Details

Item Type:Refereed Article
Keywords:ERP; Faces; PTSD;Threat
Research Division:Psychology and Cognitive Sciences
Research Group:Psychology
Research Field:Health, Clinical and Counselling Psychology
Objective Division:Health
Objective Group:Clinical Health (Organs, Diseases and Abnormal Conditions)
Objective Field:Clinical Health (Organs, Diseases and Abnormal Conditions) not elsewhere classified
Author:Felmingham, KL (Professor Kim Felmingham)
ID Code:72149
Year Published:2003
Web of Science® Times Cited:54
Deposited By:Psychology
Deposited On:2011-08-23
Last Modified:2011-10-07
Downloads:15 View Download Statistics

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