title: The effect of talking about psychological trauma with a significant other on heart rate reactivity in individuals with posttraumatic stress disorder.
abstract: Individuals with posttraumatic stress disorder (PTSD) commonly make efforts to avoid trauma-oriented conversations with their significant others, which may interfere with the natural recovery process. Trauma-oriented conversations can be experienced as physiologically arousing, depending on the intensity of PTSD symptoms and perceptions of social support. In the current investigation, changes in heart rate responses to a trauma-oriented social interaction with a significant other were assessed. Perceived supportive and unsupportive or negative social interactions were examined as moderators of the association between heart rate changes to this context and intensity of PTSD symptoms. A total of 46 individuals with PTSD completed diagnostic interviews and self-report measures of symptoms and perceived supportive and negative social interactions during a trauma-oriented social interaction with a significant other. Heart rate was continuously measured during this interaction. Results showed that engagement in a trauma-oriented social interaction was predictive of elevations in heart rate that positively correlated with intensity of PTSD symptoms. The moderation hypothesis was partially supported. In addition, perceived negative social interactions positively correlated with elevations in heart rate. These findings can inform social intervention efforts for individuals with PTSD.
authors.affiliation: Trauma Studies Center, Institut universitaire en santé mentale de Montréal, Canada; Cognitive and Social Psychophysiology Laboratory, Institut universitaire en santé mentale de Montréal, Canada; Department of Psychology, University of Montreal, Montreal, Quebec, Canada. Electronic address: Nadim.nachar@umontreal.ca.
authors.forename: Nadim
authors.initials: N
authors.lastname: Nachar
authors.affiliation: Cognitive and Social Psychophysiology Laboratory, Institut universitaire en santé mentale de Montréal, Canada; Department of Psychiatry, University of Montreal, Montreal, Quebec, Canada.
authors.forename: Marc E
authors.initials: ME
authors.lastname: Lavoie
authors.affiliation: Trauma Studies Center, Institut universitaire en santé mentale de Montréal, Canada; Department of Psychology, University of Quebec in Montreal, Montreal, Quebec, Canada.
authors.forename: André
authors.initials: A
authors.lastname: Marchand
authors.affiliation: Cognitive and Social Psychophysiology Laboratory, Institut universitaire en santé mentale de Montréal, Canada; Obsessional-Compulsive Disorders and Tics Study Center, Institut universitaire en santé mentale de Montréal, Canada; Department of Psychiatry, University of Montreal, Montreal, Quebec, Canada.
authors.forename: Kieron P
authors.initials: KP
authors.lastname: O'Connor
authors.affiliation: Trauma Studies Center, Institut universitaire en santé mentale de Montréal, Canada; Department of Criminology, University of Montreal, Montreal, Quebec, Canada.
authors.forename: Stéphane
authors.initials: S
authors.lastname: Guay
mesh_terms: D000328:Adult; D003142:Communication; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D008875:Middle Aged; D010465:Perception; D012747:Sexual Partners; D012944:Social Support; D013060:Speech; D013313:Stress Disorders, Post-Traumatic / Q000523:psychology*; D055815:Young Adult
keywords: Perceived supportive and unsupportive social interactions; Physiological reactivity; Posttraumatic stress disorder; Trauma-oriented social interaction