Assessing the mediating role of emotion regulation and experiential avoidance within a posttraumatic stress disorder and racial trauma framework.

OBJECTIVE: Theoretical and empirical evidence has begun to delineate posttraumatic stress disorder (PTSD) and racial trauma, but the degree to which individual psychological processes differ in the development of these two outcomes remains limited. Despite key distinctions in etiology and phenotypic presentations, prominent PTSD risk factors such as difficulties in emotion regulation and experiential avoidance (EA) may also contribute to the development of racial trauma. The goal of the present cross-sectional study was to investigate how difficulties in emotion regulation and EA differ in their associations with PTSD and racial trauma. METHOD: For this study, racial and ethnic minority undergraduate students completed a battery of questionnaires including the Everyday Discrimination Scale, Brief Experiential Avoidance Questionnaire, Difficulties in Emotion Regulation Scale, Trauma Symptoms of Discrimination Scale, and the PTSD checklist for DSM-5. RESULTS: A path model suggested emotion regulation difficulties and EA significantly mediated the relationship between perceived discrimination and PTSD symptoms. However, only emotion regulation difficulties mediated the relationship between perceived discrimination and racial trauma symptoms. Compared to racial trauma, pairwise comparisons suggested that emotion regulation difficulties and EA indirect effects were significantly greater when predicting PTSD symptoms. Additionally, the effects of emotion regulation difficulties were greater than EA when predicting PTSD symptoms and racial trauma. CONCLUSION: Findings of the present study suggest individual psychological factors may play a lesser role in the development of racial trauma compared to PTSD symptoms. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Examining the psychometric properties of the expressions of moral injury scale in a sample of first responders.

OBJECTIVE: There is emerging evidence that first responders, like military personnel, are at risk for exposure to potentially morally injurious events. However, studies examining expressions of moral injury in first responders are nascent, in large part due to the limited number of measures validated for use in this population. To address this gap, the present study sought to investigate the psychometric properties of the Expressions of Moral Injury Scale-Military Version (EMIS-M) in a sample of first responders. METHOD: The psychometric properties of the EMIS-M were investigated in a sample of 228 first responders to determine reliability, convergent validity, discriminative validity, and divergent validity. In addition, confirmatory factor analysis was conducted to test the bifactor model identified in a veteran sample (Currier et al., 2018). RESULTS: Results yielded an excellent fit for the bifactor model with correlated self-directed and other-directed subscales identified in the EMIS-M development study. In addition, the measure evidenced strong reliability, convergent validity, discriminative validity, and divergent validity. CONCLUSIONS: The findings of the present study suggest that the Expressions of Moral Injury Scale-First Responder Version is a psychometrically sound measure capable of assessing self- and other-directed expressions of moral injury in first responders. The significance of these findings to our understanding of moral injury in first responders and their implications for future research are discussed. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

The dynamic relationship of negative emotional content in the context of trauma-focused writing interventions on improvements in cognitive reappraisal: A pilot study.

OBJECTIVE: Writing about traumatic experiences is beneficial for the reduction of posttraumatic stress symptoms, yet little research has examined the linguistic content of trauma-focused writing interventions. The current pilot study had two aims (a) characterize changes in linguistic features in two trauma-focused writing interventions; and (b) examine how changes in linguistic content may be associated with proposed mechanisms of change in trauma treatment (i.e., emotion regulation, cognitive reappraisal, and experiential avoidance). METHOD: Data were a secondary analysis of a proof-of-concept trial of written exposure therapy (WET) compared to trauma-focused expressive writing. Participants (N = 33, 76% female) completed five virtual sessions and measures of emotion regulation, posttraumatic cognitions, and experiential avoidance. Reliable change was calculated for each mechanism pre/postintervention. Linguistic inquiry and word count (Boyd et al., 2022) was used to analyze linguistic content (i.e., negative emotion words, past tense, cognitive processing, and death-related content). RESULTS: Group differences emerged in slopes of narrative content across time for negative emotion words (b = 0.3, p = .008), past tense (b = -1.45, p < .01), and causal language (b = 0.39, p = .002). Contrary to expectations, only the slope of change in negative emotion words was associated with reliable changes in posttraumatic cognitions (b = -0.59, p = .023). CONCLUSIONS: Findings contribute evidence to support the use of negative emotion words early in treatment as a potentially influential target for improving posttraumatic cognitions in WET. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

A systematic review of literature examining mediators and mechanisms of change in empirically supported treatments for posttraumatic stress disorder.

Despite the availability of empirically supported treatments (ESTs) for posttraumatic stress disorder (PTSD), relatively little is known regarding these treatments' mechanisms of change. This systematic review moves beyond previous reviews by summarizing the findings and reviewing the methodological quality of literature that specifically examined mediators/mechanisms of change in ESTs for PTSD. Studies were included if they were written in English, empirical, peer-reviewed, claimed to study mediators/mechanisms of a recommended PTSD treatment, measured the mediator/mechanism during or before and after treatment, and included a posttreatment PTSD or global outcome (e.g., functioning). PsycINFO and PubMed were searched on October 7, 2022. Two coders screened and coded studies. Sixty-two eligible studies were identified. The most consistent mediator/mechanism was reduction in negative posttraumatic cognitions, followed by between-session extinction and decreased depression. Only 47% of studies measured the mediator/mechanism before the outcome and measured the mediator/mechanism and outcome at least three times, and 32% also used growth curve modeling to establish temporal precedence of change in the mediator/mechanism and outcome. Many of the mediators/mechanisms examined had weak or no empirical support. Results highlight the need for improved methodological rigor in treatment mediator and mechanism research. Implications for clinical care and research are discussed. PROSPERO ID: 248088.

The effect of time since index trauma on trauma-related beliefs.

OBJECTIVE: Greater duration of negative trauma-related beliefs may inhibit improvements in these cognitions during posttraumatic stress disorder (PTSD) treatment. The goal of the current study was to examine the impact of time since trauma on change in negative trauma-related beliefs during PTSD treatment. METHOD: A sample of 126 adults diagnosed with PTSD were randomized to Cognitive Processing Therapy (CPT) or Written Exposure Therapy (WET) and completed the Posttraumatic Cognitions Inventory (PTCI) at pretreatment and 6, 12, 24, 36, and 60 weeks following the first treatment session. RESULTS: Consistent with past findings, negative cognitions related to the self, others, and self-blame decreased during and after trauma-focused therapy. Greater time since the trauma was associated with less improvement in negative trauma-related beliefs about the world and less early improvement in negative trauma-related beliefs about the self and self-blame. The effect of time since trauma on reduction in negative trauma-related beliefs about the world was stronger among participants randomized to CPT. CONCLUSIONS: These results indicate that trauma-focused therapies become less potent in reducing trauma-related beliefs as time progresses since trauma exposure, particularly in CPT, for beliefs about the world. Results indicate PTSD treatment should be provided in closer proximity to trauma exposure before negative trauma-related beliefs become inflexible. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Comparing written exposure therapy to Prolonged Exposure for the treatment of PTSD in a veteran sample: A non-inferiority randomized design.

Posttraumatic stress disorder (PTSD) is highly prevalent among veterans. Although there are effective treatment approaches for PTSD, such as Prolonged Exposure (PE) and Cognitive Processing Therapy, many providers trained in these approaches do not use them, or use them without sufficient fidelity, and veterans drop out of these treatments at very high rates. The time intensive nature of these treatments is frequently cited as a barrier to receiving the treatment among veterans and delivering the treatment among providers. According, there is an urgent need to establish more efficient and effective PTSD treatment approaches in order to meet the needs of veterans seeking care. Written exposure therapy (WET) is an efficient, exposure-based treatment, and may represent a plausible alternative treatment option to address PTSD in veterans. Although WET has been found to be effective and non-inferior to more time intensive trauma-focused treatment, it has not yet been investigated with a veteran sample. In an ongoing randomized controlled trial (RCT) we are investigating whether WET is non-inferior in treating PTSD compared with the more time intensive PE. The study sample will include 150 men and women veterans diagnosed with PTSD who are randomly assigned to either WET (n = 75) or PE (n = 75). Participants are assessed prior to treatment and 10-, 20-, and 30-weeks after the first treatment session. The primary outcome is PTSD symptom severity assessed with the Clinician Administered PTSD Scale for DSM-5. Establishing that PTSD can be treated effectively with fewer treatment sessions would represent a significant advance in improving access to evidence-based care for veterans with PTSD.