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Violence Exposure Is Associated With Atypical Appraisal of Threat Among Women: An EEG Study

INTRODUCTION: The present study investigates the association of lifetime interpersonal violence (IPV) exposure, related posttraumatic stress disorder (IPV-PTSD), and appraisal of the degree of threat posed by facial avatars. METHODS: We recorded self-rated responses and high-density electroencephalo...

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Autores principales: Perizzolo Pointet, Virginie Chloé, Moser, Dominik Andrea, Vital, Marylène, Rusconi Serpa, Sandra, Todorov, Alexander, Schechter, Daniel Scott
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7835125/
https://www.ncbi.nlm.nih.gov/pubmed/33510667
http://dx.doi.org/10.3389/fpsyg.2020.576852
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author Perizzolo Pointet, Virginie Chloé
Moser, Dominik Andrea
Vital, Marylène
Rusconi Serpa, Sandra
Todorov, Alexander
Schechter, Daniel Scott
author_facet Perizzolo Pointet, Virginie Chloé
Moser, Dominik Andrea
Vital, Marylène
Rusconi Serpa, Sandra
Todorov, Alexander
Schechter, Daniel Scott
author_sort Perizzolo Pointet, Virginie Chloé
collection PubMed
description INTRODUCTION: The present study investigates the association of lifetime interpersonal violence (IPV) exposure, related posttraumatic stress disorder (IPV-PTSD), and appraisal of the degree of threat posed by facial avatars. METHODS: We recorded self-rated responses and high-density electroencephalography (HD-EEG) among women, 16 of whom with lifetime IPV-PTSD and 14 with no PTSD, during a face-evaluation task that displayed male face avatars varying in their degree of threat as rated along dimensions of dominance and trustworthiness. RESULTS: The study found a significant association between lifetime IPV exposure, under-estimation of dominance, and over-estimation of trustworthiness. Characterization of EEG microstates supported that lifetime IPV-PTSD modulates emotional appraisal, specifically in encoding and decoding processing associated with N170 and LPP evoked potentials. EEG source localization demonstrated an overactivation of the limbic system, in particular the parahippocampal gyrus, in response to non-threatening avatars. Additionally, dysfunctional involvement of attention-related processing anterior prefrontal cortex (aPFC) was found in response to relatively trustworthy avatars in IPV-PTSD individuals compared with non-PTSD controls. DISCUSSION: This study showed that IPV exposure and related PTSD modulate individuals’ evaluation of facial characteristics suggesting threat. Atypical processing of these avatar characteristics was marked by group differences in brain regions linked to facial processing, emotion regulation, and memory.
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spelling pubmed-78351252021-01-27 Violence Exposure Is Associated With Atypical Appraisal of Threat Among Women: An EEG Study Perizzolo Pointet, Virginie Chloé Moser, Dominik Andrea Vital, Marylène Rusconi Serpa, Sandra Todorov, Alexander Schechter, Daniel Scott Front Psychol Psychology INTRODUCTION: The present study investigates the association of lifetime interpersonal violence (IPV) exposure, related posttraumatic stress disorder (IPV-PTSD), and appraisal of the degree of threat posed by facial avatars. METHODS: We recorded self-rated responses and high-density electroencephalography (HD-EEG) among women, 16 of whom with lifetime IPV-PTSD and 14 with no PTSD, during a face-evaluation task that displayed male face avatars varying in their degree of threat as rated along dimensions of dominance and trustworthiness. RESULTS: The study found a significant association between lifetime IPV exposure, under-estimation of dominance, and over-estimation of trustworthiness. Characterization of EEG microstates supported that lifetime IPV-PTSD modulates emotional appraisal, specifically in encoding and decoding processing associated with N170 and LPP evoked potentials. EEG source localization demonstrated an overactivation of the limbic system, in particular the parahippocampal gyrus, in response to non-threatening avatars. Additionally, dysfunctional involvement of attention-related processing anterior prefrontal cortex (aPFC) was found in response to relatively trustworthy avatars in IPV-PTSD individuals compared with non-PTSD controls. DISCUSSION: This study showed that IPV exposure and related PTSD modulate individuals’ evaluation of facial characteristics suggesting threat. Atypical processing of these avatar characteristics was marked by group differences in brain regions linked to facial processing, emotion regulation, and memory. Frontiers Media S.A. 2021-01-12 /pmc/articles/PMC7835125/ /pubmed/33510667 http://dx.doi.org/10.3389/fpsyg.2020.576852 Text en Copyright © 2021 Perizzolo Pointet, Moser, Vital, Rusconi Serpa, Todorov and Schechter. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Psychology
Perizzolo Pointet, Virginie Chloé
Moser, Dominik Andrea
Vital, Marylène
Rusconi Serpa, Sandra
Todorov, Alexander
Schechter, Daniel Scott
Violence Exposure Is Associated With Atypical Appraisal of Threat Among Women: An EEG Study
title Violence Exposure Is Associated With Atypical Appraisal of Threat Among Women: An EEG Study
title_full Violence Exposure Is Associated With Atypical Appraisal of Threat Among Women: An EEG Study
title_fullStr Violence Exposure Is Associated With Atypical Appraisal of Threat Among Women: An EEG Study
title_full_unstemmed Violence Exposure Is Associated With Atypical Appraisal of Threat Among Women: An EEG Study
title_short Violence Exposure Is Associated With Atypical Appraisal of Threat Among Women: An EEG Study
title_sort violence exposure is associated with atypical appraisal of threat among women: an eeg study
topic Psychology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7835125/
https://www.ncbi.nlm.nih.gov/pubmed/33510667
http://dx.doi.org/10.3389/fpsyg.2020.576852
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