Dissociation As a Mechanism of Risk for Interpersonal Victimization Among Adolescent Girls.

Childhood interpersonal violence exposure (IVE) is associated with repeated victimization in adolescence and adulthood. Research suggests dissociation, a psychological phenomenon characterized by alterations and disruptions to consciousness, memory, and perceptions of the environment, and out-of-body experiences, increases the risk of revictimization. Self-report data from a longitudinal study of 92 violence-exposed adolescent girls from a large, urban area were analyzed to assess whether dissociation predicts polyvictimization or exposure to multiple types of interpersonal violence across adolescence.

Resting heart rate associations with violence exposure and posttraumatic stress symptoms: sex differences in children.

Background: Traumatic events experienced in childhood can lead to increased risk of cardiovascular disorders in adulthood. Black Americans are disproportionately affected, as they are at increased risk for experiencing childhood trauma and cardiovascular diseases in adulthood. One of the hypothesized mechanisms of this association is through long-lasting dysregulation of the autonomic nervous system, a hallmark physiological biomarker of posttraumatic stress disorder (PTSD), which is twice as prevalent in women compared to men.

A meta-analysis of the association between shame and dissociation.

Shame and dissociation have been implicated theoretically and empirically in trauma exposure and its sequelae, with shame understood as an intense negative emotion and dissociation as a reaction to intense negative emotions. Understanding the connection between shame and dissociation is important for theory and practice; however, the strength of this association remains unclear. For example, in therapy, both shame and dissociation serve as a barrier to engaging with emotion.

Behavioral and Biological Indicators of Risk and Well-Being in a Sample of South African Youth.

Unlabelled: Self report measures have been widely used in research to illustrate high rates of exposure to violence among youth in trauma-saturated regions, such as Cape Town, South Africa. To better understand the risk and resilience factors of youth who have been exposed to, witnessed, or directly experienced violence, the current study used a multi-method assessment in a naturalistic setting that included heart rate variability (an index of regulatory flexibility and cardiovascular health), a computerized risk-taking task, and self report measures. Youth (N = 83) from Cape Town, South Africa, participated in a psychobiological assessment.

Increasing self-efficacy reduces visual intrusions to a trauma-film paradigm.

Background And Objectives: It has been proposed that self-efficacy plays a critical role in the onset and maintenance of Posttraumatic Stress Disorder (PTSD). This study aimed to test if increasing perceptions of self-efficacy using a false feedback technique about coping abilities prior to a trauma-film paradigm lead to a reduction of visual intrusions over the course of 6 days.

Design And Methods: Healthy participants recruited from the community were randomized to a high self-efficacy (HSE, N = 18), low self-efficacy (LSE, N = 21), or neutral self-efficacy (NSE, N = 23) conditions.

Neural circuitry changes associated with increasing self-efficacy in Posttraumatic Stress Disorder.

Cognitive models suggest that posttraumtic stress disorder (PTSD) is maintained, in part, as a result of an individual's maladaptive beliefs about one's ability to cope with current and future stress. These models are consistent with considerable findings showing a link between low levels of self-efficacy and PTSD. A growing body of work has demonstrated that perceptions of self-efficacy can be enhanced experimentally in healthy subjects and participants with PTSD, and increasing levels of self-efficacy improves performance on cognitive, affective, and problem-solving tasks.

Expressive flexibility in combat veterans with posttraumatic stress disorder and depression.

Background: A growing body of evidence suggests that the ability to flexibly express and suppress emotions ("expressive flexibility") supports successful adaptation to trauma and loss. However, studies have yet to examine whether individuals that meet criteria for posttraumatic stress disorder (PTSD) or depression exhibit alterations in expressive flexibility. The present study aims to test whether lower levels of expressive flexibility are associated with PTSD and depression in combat-exposed veterans.

Enhancing self-efficacy improves episodic future thinking and social-decision making in combat veterans with posttraumatic stress disorder.

Posttraumatic Stress Disorder (PTSD) is associated with maladaptive changes in self-identity, including impoverished perceived self-efficacy. This study examined if enhancing perceptions of self-efficacy in combat veterans with and without symptoms of PTSD promotes cognitive strategies associated with positive mental health outcomes. Prior to completing a future thinking and social problem-solving task, sixty-two OEF/OIF veterans with and without symptoms of PTSD were randomized to either a high self-efficacy (HSE) induction in which they were asked to recall three autobiographical memories demonstrating self-efficacy or a control condition in which they recalled any three autobiographical events.