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Objective: Firefighters experience heightened rates of posttraumatic stress disorder (PTSD) symptoms compared to the general population. Nascent literature has identified distress overtolerance (DO; i.e., the tendency to persist through extremely high levels of distress despite harmful consequences) as a construct of potential relevance to PTSD symptomatology, though empirical research is lacking. The present study examined incremental associations between DO subscales (Capacity for Harm: persevering through distress despite its effect on 1’s wellbeing; Fear of Negative Evaluation: persisting through distress due to a fear of being negatively evaluated by others should they quit) and PTSD symptom severity and symptom cluster severity (i.e., intrusion, avoidance, negative alterations in cognitions and mood [NACM], arousal and reactivity) among firefighters. Method: Participants included 282 trauma-exposed firefighters (91.8% male, Mage = 40.4, SD = 9.6). Covariates included years in the fire service, trauma load (i.e., number of trauma exposure types), and negative affect. Results: Results indicated that Capacity for Harm was a significant incremental correlate of total PTSD symptom severity (ΔR2 = .045, p = .004), NACM symptoms (ΔR2 = .061, p < .001), and arousal/reactivity symptoms (ΔR2 = .047, p = .005). Fear of Negative Evaluation was not significantly related to any criterion variables. Conclusion: Further work examining DO-PTSD relations is necessary to inform intervention and policy for the fire service.

BackgroundCognitive bias theories propose that reducing threat hypervigilance in mental disorders can augment cognitive behavioral therapy (CBT) outcomes. However, no studies have tested whether adding attention bias modification (ABM) can effectively enhance CBT's effects on anxiety sensitivity (AS), electromyography (EMG), and skin conductance (SC) for panic disorder (PD). This pilot randomized controlled trial (RCT) thus aimed to evaluate the efficacy of CBT + ABM (vs. CBT plus attention training placebo; PBO) on those outcomes. MethodThis study is a secondary analysis (Baker et al., 2020). Adults with PD were randomized to receive CBT + ABM (n = 11) or CBT + PBO (n = 12). Before each of the first five CBT sessions, CBT + ABM and CBT + PBO participants completed a 15-min ABM task or attention training PBO, respectively. AS and depression severity as well as SC and EMG during habituation to a loud-tone startle paradigm were assessed. Hierarchical Bayesian analyses were conducted. ResultsDuring pre-post-treatment and pre-follow-up, CBM + ABM (vs. CBT + PBO) led to a notably greater reduction in ASI-Physical (between-group d = À1.26 to À1.25), ASI-Cognitive (d = À1.16 to À1.10), and depression severity (d = À1.23 to À0.99). However, no between-group difference was observed for ASI-Social, EMG, or SC indices. DiscussionAdding a brief computerized ABM intervention to CBT for PD protocols may enhance therapeutic change.

The non-Hispanic Black population experiences trauma-related disparities. One potentially important individual difference construct for posttraumatic stress is anxiety sensitivity. There is limited work on anxiety sensitivity among non-Hispanic Black persons, and no research has focused on this construct in terms of posttraumatic stress among this population. This study sought to build on this limited knowledge by exploring whether this construct was uniquely associated with more severe posttraumatic stress among this population. Participants included non-Hispanic Black trauma-exposed adults (N = 121; M age = 21.79 years). Results indicated that anxiety sensitivity was related to more severe overall posttraumatic stress and greater severity of each posttraumatic stress symptom cluster; all effects were evident after adjusting for the variance accounted for by age, sex, education, subjective social status, neuroticism, and number of traumatic event types experienced (lifetime). The study provides the first empirical evidence that, among a trauma-exposed non-Hispanic Black sample of adults, anxiety sensitivity is related to more severe posttraumatic stress symptoms. This intraindividual difference factor could be a focus of intervention programming for this trauma disparity population.

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