eCite Digital Repository

Neural activity and emotional processing following military deployment: Effects of mild traumatic brain injury and posttraumatic stress disorder

Citation

Zuj, DV and Felmingham, KL and Palmer, MA and Lawrence-Wood, E and Van Hooff, M and Lawrence, AJ and Bryant, RA and McFarlane, AC, Neural activity and emotional processing following military deployment: Effects of mild traumatic brain injury and posttraumatic stress disorder, Brain and Cognition, 118 pp. 19-26. ISSN 0278-2626 (2017) [Refereed Article]

Copyright Statement

2017 Elsevier Inc

Official URL: https://doi.org/http://dx.doi.org/

DOI: doi:10.1016/j.bandc.2017.07.001

Abstract

Posttraumatic Stress Disorder (PTSD) and mild traumatic brain injury (mTBI) are common comorbidities during military deployment that affect emotional brain processing, yet few studies have examined the independent effects of mTBI and PTSD. The purpose of this study was to examine distinct differences in neural responses to emotional faces in mTBI and PTSD. Twenty-one soldiers reporting high PTSD symptoms were compared to 21 soldiers with low symptoms, and 16 soldiers who reported mTBI-consistent injury and symptoms were compared with 16 soldiers who did not sustain an mTBI. Participants viewed emotional face expressions while their neural activity was recorded (via event-related potentials) prior to and following deployment. The high-PTSD group displayed increased P1 and P2 amplitudes to threatening faces at post-deployment compared to the low-PTSD group. In contrast, the mTBI group displayed reduced face-specific processing (N170 amplitude) to all facial expressions compared to the no-mTBI group. Here, we identified distinctive neural patterns of emotional face processing, with attentional biases towards threatening faces in PTSD, and reduced emotional face processing in mTBI.

Item Details

Item Type:Refereed Article
Keywords:Traumatic brain injury; PTSD; ERP; Attention bias; Emotion
Research Division:Psychology and Cognitive Sciences
Research Group:Psychology
Research Field:Biological Psychology (Neuropsychology, Psychopharmacology, Physiological Psychology)
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in Psychology and Cognitive Sciences
Author:Zuj, DV (Mr Daniel Zuj)
Author:Palmer, MA (Dr Matt Palmer)
ID Code:118978
Year Published:2017
Deposited By:Psychology
Deposited On:2017-07-24
Last Modified:2018-01-09
Downloads:0

Repository Staff Only: item control page