9 documents found, page 1 of 1
Tonic immobility in PTSD : exacerbation of emotional cardiac defense response.
Norte, Carlos Eduardo; Volchan, Eliane; Vila, Jaime; Mata, José Luís; Arbol, Javier Rodriguez; Mendlowicz, Mauro Vítor; Berger, WilliamAmong 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,...
Immobility reactions under threat : a contribution to human defensive cascade a...
Volchan, Eliane; Rego, Vanessa da Rocha; Campos, Aline Furtado Bastos; Oliveira, José Magalhães de; Franklin, Camila Martins; Gleiser, SoniaViolence exacts a burden on public health. Gun violence is a major trigger for motor defensive reactions in humans and post-traumatic stress disorder (PTSD) is its main psychiatric sequela. However, studies of the human defensive cascade, especially the motor reactions, are at an early stage. This review focuses on studies that employ stabilometry, a methodology that assesses whole body motor reactions, to addr...
Exposure to trauma-relevant pictures is associated with tachycardia in victims ...
Alves, Rita de Cassia S.; Portugal, Liana C. L.; Fernandes Junior, Orlando; Mocaiber, Izabela; Souza, Gabriela Guerra Leal deTonic immobility is an involuntary, last-ditch defensive reaction characterized by physical inactivity in a context of inescapable threat that has been described in many species, including humans. The occurrence of this defensive response is a predictor of the severity of psychiatric disorders and may be considered as an index of an intense reaction to a traumatic event. Here, we investigated whether the retros...
Is there tonic immobility in humans? Biological evidence from victims of trauma...
Volchan, Eliane; Souza, Gabriela Guerra Leal de; Franklin, Camila Martins; Norte, Carlos Eduardo; Rego, Vanessa da Rocha; Oliveira, José Magalhães deTonic immobility, characterized by profound motor inhibition, is elicited under inescapable threat in many species. To fully support the existence of tonic immobility in humans, our aim was to elicit this reaction in a laboratory setting and measure it objectively. To mimic exposure to life-threatening events in the lab, trauma-exposed participants with PTSD (n = 18) and without PTSD (n = 15) listened to the sc...
Impact of cognitive-behavior therapy on resilience-related neurobiological fact...
Norte, Carlos Eduardo; Souza, Gabriela Guerra Leal de; Pedrozo, Ana Lúcia; Souza, Ana Carolina Ferraz Mendonça de; Figueira, Ivan Luiz de VasconcellosA resiliência, como uma variável de desfecho, tem sido largamente negligenciada no campo terapêutico. Nosso objetivo foi investigar os efeitos da terapia cognitivo-comportamental (TCC) nos marcadores neurobiológicos de resiliência em pacientes com transtorno de estresse pós-traumático (TEPT). Nesta pesquisa experimental de caso único, foram acessadas variáveis fisiológicas (frequência cardíaca, frequência respi...
They know their trauma by heart : an assessment of psychophysiological failure ...
Norte, Carlos Eduardo; Souza, Gabriela Guerra Leal de; Vilete, Liliane; Portella, Carla Marques; Coutinho, Evandro da Silva FreireBackground: Posttraumatic stress disorder (PTSD) develops following exposure to a traumatic event and is characterized by persistent intense reactivity to trauma relatedcues. Equally important, butless studied, is the fail uretores to rephysiological home ostasis after these excessive reactions. This study investigates psycho physiological markers of sustained cardiac activity after exposure to reminders of tra...
Impact of cognitive-behavior therapy on resilience-related neurobiological factors
Norte, Carlos Eduardo; Souza, Gabriela Guerra Leal; Pedrozo, Ana Lucia; Mendonça-de-Souza, Ana Carolina Ferraz; Figueira, Ivan; Volchan, ElianeResilience, as an outcome variable, has been largely neglected in the field of therapeutics. Our aim was to investigate the effects of cognitive behavioral therapy (CBT) on neurobiological markers of resilience in posttraumatic stress disorder (PTSD) patients. In this single-case experimental research, we assessed physiological (heart rate, respiratory rate, cardiac vagal tone, sympathetic balance and skin cond...
Scientific evidences from neurosciences to cognitive behavioral therapy
Porto, Patrícia; Oliveira, Letícia; Volchan, Eliane; Mari, Jair; Figueira, Ivan; Ventura, PaulaAnxiety disorders are related with inability to control fear and regulate negative emotions. The cognitive behavioral therapy (TCC) encompasses techniques that allow both the extinction of fear conditioning and cognitive emotional regulation. The study aims to report results of emotion regulation studies that can illustrate the association and collaboration between TCC and neuroscience. Based on emotion regulat...
Attentional capture by emotional stimuli
Erthal, Fátima; Volchan, Eliane; Oliveira, Leticia; Machado-Pinheiro, Walter; Pessoa, LuizIn the present study, we investigated whether emotional pictures, presented as distractors, interfere in the performance of a competing neutral task. The participants had to discriminate the orientation of two bars presented bilaterally in the periphery (similar or dissimilar). Task difficulty was determined by the differences in orientation between the bars: the smallest orientation differences were used in th...