Tonic immobility in PTSD : exacerbation of emotional cardiac defense response.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorNorte, Carlos Eduardo-
Autor(es): dc.creatorVolchan, Eliane-
Autor(es): dc.creatorVila, Jaime-
Autor(es): dc.creatorMata, José Luís-
Autor(es): dc.creatorArbol, Javier Rodriguez-
Autor(es): dc.creatorMendlowicz, Mauro Vítor-
Autor(es): dc.creatorBerger, William-
Autor(es): dc.creatorLuz, Mariana Pires-
Autor(es): dc.creatorRego, Vanessa da Rocha-
Autor(es): dc.creatorFigueira, Ivan Luiz de Vasconcellos-
Autor(es): dc.creatorSouza, Gabriela Guerra Leal de-
Data de aceite: dc.date.accessioned2025-08-21T15:32:14Z-
Data de disponibilização: dc.date.available2025-08-21T15:32:14Z-
Data de envio: dc.date.issued2020-04-03-
Data de envio: dc.date.issued2020-04-03-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/12027-
Fonte completa do material: dc.identifierhttps://doi.org/10.3389/fpsyg.2019.01213-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1017723-
Descrição: dc.descriptionAmong defensive behaviors, tonic immobility (TI) is considered the last defensive resort when life is at extreme risk. Post-Traumatic Stress Disorder (PTSD) is the main psychiatric consequence resulting from exposure to traumatic events. Increasing evidence indicate an association between peritraumatic tonic immobilility and severity of PTSD. Cardiac defense response, a reactivity to perceived danger or threat, has been studied by recording heart rate changes that follows the presentation of an unpredictable intense auditory aversive stimulus. The aim of this study was to investigate potential distinctiveness in cardiac defense response among PTSD patients who presented – compared to those that did not – TI reaction in the laboratory setting. Patients (N = 17) completed the TI questionnaire for signs of immobility elicited by passive listening to their autobiographical trauma script. After a while, they were exposed to an intense white noise, while electrocardiogram was recorded. The heart rate during the 80 s after the noise, subtracted from baseline, was analyzed. Higher reports of TI to the trauma script were associated with stronger and sustained heart rate accelerations after the noise. The effects on cardiac defense response add to increasing evidence that some PTSD patients are prone to repeated re-experiences of TI, which may implicate in a potentially distinct pathophysiology and even a new PTSD subtype.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsaberto-
Direitos: dc.rightsThis 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. Fonte: o próprio artigo.-
Palavras-chave: dc.subjectPost-traumatic stress disorder-
Palavras-chave: dc.subjectHumans-
Palavras-chave: dc.subjectHeart rate-
Título: dc.titleTonic immobility in PTSD : exacerbation of emotional cardiac defense response.-
Aparece nas coleções:Repositório Institucional - UFOP

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