Project description:One victimization experience can increase the risk for subsequent victimization, which is known as revictimization. The aims of this study were to build on sexual revictimization research by (a) broadening the understanding of revictimization to interpersonal (and potentially noninterpersonal) trauma generally and (b) gaining specificity in the mechanisms that underlie revictimization. Using a prospective multisite design, an ethnically and racially diverse sample of 453 young women from the community (age range: 18-25 years, 60.7% European American) completed an initial survey and at least one follow-up survey within the subsequent year. Participants completed self-report measures of trauma history, posttraumatic stress symptoms, and maladaptive posttraumatic cognitions. Structural equation models revealed that interpersonal revictimization was observed when controlling for past noninterpersonal trauma, odds ratio (OR) = 2.27, 95% CI [1.23, 4.18], and supported the role of posttraumatic stress symptoms as a mechanism underlying such revictimization, 95% CI of indirect effect (IE) [0.08, 0.51]. Additionally, a history of noninterpersonal trauma (controlling for past interpersonal trauma) increased risk of subsequent interpersonal victimization via posttraumatic stress symptoms, 95% CI of IE [0.01, 0.38]. Notably, however, when maladaptive cognitions were included as mediators in addition to posttraumatic stress symptoms, the only unique indirect effect was for the association between interpersonal trauma and risk of revictimization specifically through perceived threat of harm, 95% CI of IE [0.05, 0.20]. These findings suggest that efforts to reduce interpersonal revictimization should target maladaptive posttraumatic cognitions, particularly perceptions of threat in the environment.
Project description:Research has shown that people sometimes report self-perceived growth as a result of dealing with a potentially traumatic event, but relatively few methodologically rigorous studies have examined whether perceived posttraumatic growth is associated with improved subsequent well-being across a wide range of outcomes. In this three-wave longitudinal study of Colombian emerging adults (n = 636), we examined the associations of perceived posttraumatic growth with 17 well-being outcomes across domains of psychological well-being (i.e., self-rated mental health, meaning in life, sense of purpose, happiness, life satisfaction), psychological distress (i.e., anxiety symptoms, depression symptoms, subjective suffering), social well-being (i.e., content with relationships, satisfying relationships, loneliness), physical well-being (i.e., self-rated physical health, sleep quality), and character strengths (i.e., state hope, trait forgivingness, orientation to promote good, delayed gratification). Using an outcome-wide analytic design that adjusted for a range of covariates assessed in Wave 1, we found that overall perceived posttraumatic growth assessed in Wave 2 was robustly associated with improvements in one or more facet of each well-being domain (15/17 outcomes in total) assessed approximately six months later in Wave 3. Our findings suggest that perceived posttraumatic growth may contribute to individual well-being over the longer-term.
Project description:Women who have survived interpersonal trauma are at elevated risk of developing posttraumatic stress disorder (PTSD), and potentially modifiable factors that may be targeted in treatment warrant further investigation. This study examined a pathway from interpersonal trauma to PTSD symptoms via emotion dysregulation and shame in a large non-clinical sample of women. The sample comprised 380 women, aged 18 to 59 years (M = 31.70, standard deviation = 10.06), all of whom had a history of interpersonal trauma. Participants completed the Experience of Shame Scale, the Difficulties in Emotion Regulation Scale-Short Form, and the Life Events Checklist for DSM-5. A serial and parallel process model with interpersonal trauma as a predictor of PTSD symptoms, emotional dysregulation and facets of shame as intermediary variables, was analyzed using Statistical Package for Social Sciences Statistics PROCESS Model 81with bias-corrected bootstrap tests of indirect effects. Non-interpersonal trauma was included as a covariate. Interpersonal trauma, emotion dysregulation, and characterological and bodily shame were significantly and directly associated with PTSD symptoms, together explaining 59% of the variation in PTSD symptoms. While emotion dysregulation was associated with behavioral shame, interpersonal trauma was not associated with behavioral shame, nor was behavioral shame associated with PTSD symptoms. Tests of indirect effects supported a pathway from interpersonal trauma to PTSD symptoms via emotion dysregulation and characterological and bodily shame. These findings suggest interventions that are particularly effective at reducing emotion dysregulation and characterological and bodily shame, such as compassion and acceptance-based approaches, may complement evidence-based PTSD interventions when working with women who have survived interpersonal trauma.
Project description:ObjectiveExamine initial levels and pattern of change of alliance in group treatment for posttraumatic stress disorder (PTSD) for veterans.MethodOne hundred and seventy-eight male veterans with PTSD were recruited for this study. Participants were randomly assigned to either group cognitive behavioral therapy (GCBT) or to group present-centered therapy (GPCT). Alliance with fellow group members was assessed every other session throughout the group (total of seven assessments). Hierarchical linear modeling was used to determine whether treatment condition or index trauma type (interpersonal or non-interpersonal) impacted initial levels of alliance or change in alliance over time.ResultsAlliance increased significantly throughout treatment in both conditions. The presence of an interpersonal index event, compared to a non-interpersonal index event, did not significantly impact either initial levels of alliance or change in alliance over time. Participants in the GCBT condition experienced significantly greater growth in alliance over time compared to those in the GPCT condition (p > .05), but did not have significantly different initial alliance ratings.ConclusionsThe components and focus of the GCBT treatment may have facilitated more rapid bonding among members. Interpersonal traumatic experience did not negatively impact group alliance.
Project description:Interpersonal violence (IPV) is one of the most frequent causes for the development of posttraumatic stress disorder (PTSD) in women. Trauma-related triggers have been proposed to evoke automatic emotional responses in PTSD. The present functional magnetic resonance study investigated the neural basis of trauma-related picture processing in women with IPV-PTSD (n = 18) relative to healthy controls (n = 18) using a newly standardized trauma-related picture set and a non-emotional vigilance task. We aimed to identify brain activation and connectivity evoked by trauma-related pictures, and associations with PTSD symptom severity. We found hyperactivation during trauma-related vs neutral picture processing in both subcortical [basolateral amygdala (BLA), thalamus, brainstem] and cortical [anterior cingulate cortex (ACC), medial prefrontal cortex (mPFC), insula, occipital cortex] regions in IPV-PTSD. In patients, brain activation in amygdala, ACC, insula, occipital cortex and brainstem correlated positively with symptom severity. Furthermore, connectivity analyses revealed hyperconnectivity between BLA and dorsal ACC/mPFC. Results show symptom severity-dependent brain activation and hyperconnectivity in response to trauma-related pictures in brain regions related to fear and visual processing in women suffering from IPV-PTSD. These brain mechanisms appear to be associated with immediate responses to trauma-related triggers presented in a non-emotional context in this PTSD subgroup.
Project description:The present study proposes and tests a cascade model of complex posttraumatic stress disorder (CPTSD) focusing on childhood trauma and maltreatment, attachment, and socio-interpersonal factors. Multigroup path analysis was used to examine data from 126 individuals formerly affected by compulsory social measures and placements (CSMP) in their childhood and/or adolescence (i.e., risk group [RG]; M age = 70.8 years) and an age-matched control group (CG; n = 125; M age = 70.6 years). The final model confirmed the cascade structure, with stronger associations emerging in the RG. Childhood trauma and maltreatment were associated with attachment anxiety, β = |.20|-.30, which was related to all socio-interpersonal factors (i.e., disclosure of trauma, social acknowledgment, and social support), β = .27-|.54|; the latter were associated with substantial aspects of the CPTSD symptoms as well as life satisfaction, β = |.21|-.42. Among participants in the CG, we observed more direct, rather than mediated, paths to CPTSD symptoms. Adulthood trauma exposure did not follow the full cascade pattern but was associated with the socio-interpersonal factors. Nevertheless, more in-depth clinical knowledge of CPTSD and potential targets for psychological treatment may be gained from the confirmation of this newly proposed cascade model of CPTSD.
Project description:When people meet, they almost instantaneously form an impression of each other. First impressions of character traits and rapport are less favourable when people with autism spectrum condition (ASC) are judged compared to non-autistic people. Little is known about the behavioural differences that drive these altered impressions. In the present study, we investigated the influence of interpersonal synchrony on impression formation of autistic and non-autistic people. Specifically, we used lagged cross-correlations to assess how much each interactant's motion energy, a measure which can be determined from video recordings, influenced the other interactant's motion energy. In short, silent clips of dyadic conversations, we asked non-autistic participants to rate their impression of one of the two interactants, which was solely based on the outlines of both interactants. We expected that the amount of leading of the target interactant, their diagnostic status as well as the interaction of these factors would influence impression formation. We found that while the amount of leading had a positive effect on the impressions of non-autistic interactants, this was not true for interactants with ASC. This suggests that interpersonal synchrony of motion energy is one driver of less favourable impressions of autistic compared to non-autistic people.
Project description:A substantial minority of women who experience interpersonal violence will develop posttraumatic stress disorder (PTSD). One critical challenge for preventing PTSD is predicting whose acute posttraumatic stress symptoms will worsen to a clinically significant degree. This 6-month longitudinal study adopted multilevel modeling and exploratory machine learning (ML) methods to predict PTSD onset in 58 young women, ages 18 to 30, who experienced an incident of physical and/or sexual assault in the three months prior to baseline assessment. Women completed baseline assessments of theory-driven cognitive and neurobiological predictors and interview-based measures of PTSD diagnostic status and symptom severity at 1-, 3-, and 6-month follow-ups. Higher levels of self-blame, generalized anxiety disorder severity, childhood trauma exposure, and impairment across multiple domains were associated with a pattern of high and stable posttraumatic stress symptom severity over time. Predictive performance for PTSD onset was similarly strong for a gradient boosting machine learning model including all predictors and a logistic regression model including only baseline posttraumatic stress symptom severity. The present findings provide directions for future work on PTSD prediction among interpersonal violence survivors that could enhance early risk detection and potentially inform targeted prevention programs.
Project description:Positive memories play an important role in the aetiology and maintenance of posttraumatic stress disorder (PTSD). However, most trauma research/clinical work has focused solely on the role of traumatic memories. Thus, we examined the relationship between count of retrieved positive memories and PTSD severity, factors associated with count of retrieved positive memories (i.e., rumination, negative/positive emotion dysregulation, fear of positive emotions), and the relationship between positive memory phenomenological domains and PTSD severity. The sample included 185 trauma-exposed participants recruited through Amazon's Mechanical Turk (Mage = 35.69 years; 63.80% female). Results of linear/hierarchical regressions showed that (1) PTSD severity did not predict count of (specific) positive memories; (2) greater positive emotion dysregulation predicted fewer retrieved positive memories controlling for PTSD severity; and (3) greater PTSD severity predicted more negative valence, less vividness, less coherence, less accessibility, less clear time perspective, fewer sensory details, and greater distancing ratings of the retrieved positive memory, controlling for sleep quantity/quality. Findings add to the literature by informing PTSD theoretical perspectives; enhancing an understanding of positive memories in PTSD/trauma treatments; and highlighting potential clinical targets (e.g., positive emotion regulation), when integrating a focus on positive memories into PTSD intervention.