Chou, C-Y;
La Marca, R;
Steptoe, A;
Brewin, CR;
(2018)
Cardiovascular and psychological responses to voluntary recall of trauma in posttraumatic stress disorder.
European Journal of Psychotraumatology
, 9
(1)
, Article 1472988. 10.1080/20008198.2018.1472988.
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Abstract
Voluntary recall of trauma is a key element in exposure-based psychotherapies and can trigger spontaneous dissociative responses such as flashbacks, depersonalisation, and derealisation. In order to examine the associations between cardiovascular and psychological responses to voluntary recollection of trauma, individuals with PTSD recalled a traumatic memory. Heart rate and heart rate variability were recorded continuously and the episodes when different forms of dissociation were experienced during the recall were identified. A significant increase in parasympathetic activity was found during trauma recall, with greater parasympathetic dominance being indicative of greater state depersonalisation/derealisation. Whereas overall decreases in heart rate during trauma recall were associated with increased fear and perceived threat, flashbacks were accompanied by short-term increases in heart rate. These findings demonstrate different types of cardiovascular responses associated with different psychological experiences during trauma recall. Future research directions were discussed.
Type: | Article |
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Title: | Cardiovascular and psychological responses to voluntary recall of trauma in posttraumatic stress disorder |
Location: | United States |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1080/20008198.2018.1472988 |
Publisher version: | http://doi.org/10.1080/20008198.2018.1472988 |
Language: | English |
Additional information: | Copyright © 2018 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Keywords: | Heart rate variability, heart rate, PTSD, memory recall, flashbacks, depersonalisation/derealisation 关键词: 心率变异性, 心率, 创伤后应激障碍, 回忆, 闪回, 人格解体/现实解体 PALABRAS CLAVE: Variabilidad de la frecuencia cardiaca, frecuencia cardiaca, TEPT, evocación, flashbacks, despersonalización/desrealización |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Clinical, Edu and Hlth Psychology UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health > Behavioural Science and Health |
URI: | https://discovery.ucl.ac.uk/id/eprint/10050769 |
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