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Processing angry and neutral faces in post-traumatic stress disorder: an event-related potentials study
journal contribution
posted on 2023-05-17, 07:21 authored by Kim FelminghamKim Felmingham, Bryant, RA, Gordon, EThis 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 significantly 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 differences between angry and neutral faces, and the amplitude of their negativewaveformswere reduced relative to controls.These ndingsmay refect 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 14:777-780 copyright 2003 LippincottWilliams &Wilkins.
History
Publication title
NeuroreportVolume
14Issue
5Pagination
777-780ISSN
0959-4965Department/School
School of Psychological SciencesPublisher
Lippincott Williams & WilkinsPlace of publication
530 Walnut St, Philadelphia, USA, Pa, 19106-3621Rights statement
Copyright © 2003 Lippincott Williams & Wilkins, Inc.Repository Status
- Restricted