2012
DOI: 10.1016/s1516-4446(12)70011-9
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Peritraumatic tonic immobility is associated with posttraumatic stress symptoms in undergraduate Brazilian students

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Cited by 11 publications
(21 citation statements)
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“…Since tonic immobility is evoked by overwhelming fear and perceived inescapability, and occurs before the onset of PTSD symptoms, this reaction could be one path through which trauma survivors develop PTSD [6]. Indeed, recent studies have demonstrated that peritraumatic tonic immobility is a predictor of the development [8,13,15], severity [6,11] and poor prognosis [9,10] of PTSD. Our epidemiological finding that peritraumatic tonic immobility is related to PTSD overcomes the limitations of previous tonic immobility literature in humans, which were completely based on convenience samples.…”
Section: Discussionmentioning
confidence: 99%
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“…Since tonic immobility is evoked by overwhelming fear and perceived inescapability, and occurs before the onset of PTSD symptoms, this reaction could be one path through which trauma survivors develop PTSD [6]. Indeed, recent studies have demonstrated that peritraumatic tonic immobility is a predictor of the development [8,13,15], severity [6,11] and poor prognosis [9,10] of PTSD. Our epidemiological finding that peritraumatic tonic immobility is related to PTSD overcomes the limitations of previous tonic immobility literature in humans, which were completely based on convenience samples.…”
Section: Discussionmentioning
confidence: 99%
“…Expanding the scope of previous investigations, Fiszman et al [9] showed the occurrence of peritraumatic tonic immobility during non-sexual violence in both men and women diagnosed with posttraumatic stress disorder (PTSD), demonstrating that TI occurs in both gender. Following these studies, researchers assessed peritraumatic tonic immobility in other mixed-gender samples; with PTSD secondary to urban violence [10][11][12], students exposed to various traumas [13][14][15] and police officers [16].…”
Section: Introductionmentioning
confidence: 99%
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“…O estado de IT também pode ocorrer em humanos, em situações de intenso choque, como resposta defensiva 3 , e suas conse quências têm sido discutidas por estudiosos do transtorno de estresse pós-traumático (TEPT). Pacientes com TEPT relatam ter experimentado episódio de IT peritraumático, com suas manifestações autonômicas características, configurando um estado similar a IT animal por intenso medo [4][5][6] . Nos últimos tempos, crescente interesse tem surgido na possibilidade de associar o modelo de IT animal com algumas condições humanas, sendo o padrão de imobilidade considerado similar a certas manifestações psiquiátricas 7 , como a catatonia [8][9][10] e o estado depressivo 11,12 .…”
Section: Introductionunclassified
“…Segundo (Carli, 1968), tanto os reflexos mono ou polissinápticos de músculos flexores ou extensores encontram-se inibidos durante a IT. Em harmonia com os estudos citados anteriormente, (Ratner, 1967) São crescentes as publicações científicas sugerindo correlação entre a resposta de IT em animais com posturas de imobilidade em seres humanos após eventos de grande impacto emocional (Bovin et al, 2008;Abrams et al, 2009;Humphreys et al, 2010;Volchan et al, 2011;Portugal et al, 2012). Dentro deste contexto, foram descritos casos de imobilidade, semelhantes à IT em animais, em vítimas de abuso sexual (Abrams et al, 2009;Bovin et al, 2008;Humpreys et al, 2010), e em pacientes acometidos por sintomas de estresse pós-traumático (Portugal et al, 2012;Volchan et al, 2011).…”
Section: 2) Imobilidade Tônicaunclassified