ArticlePsychological trauma : theory, research, practice and policy2023
The main and interactive effects of distress tolerance and reward function on posttraumatic stress disorder symptoms among firefighters.
Article in Psychological trauma : theory, research, practice and policy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundFirefighters are at heightened risk of posttraumatic stress disorder (PTSD), underscoring the importance of understanding clinically targetable factors to inform evidence-based intervention development. Hedonic capacity, or the ability to experience pleasure, is a facet of reward functioning. Anhedonia (i.e., low or absent hedonic capacity) is a hallmark symptom of PTSD. Distress tolerance (DT), or the perceived ability to withstand negative emotional states, has also demonstrated associations with PTSD.
objectiveThe purpose of the present study was to examine the main and interactive effects of self-reported hedonic capacity (Snaith-Hamilton Pleasure Scale) and DT (Distress Tolerance Scale) on PTSD symptom severity among firefighters.
methodA hierarchical linear regression was performed among a sample of 802 trauma-exposed career firefighters, who completed a battery of self-report questionnaires. Covariates included trauma load (i.e., number of trauma types), years in the fire service, and depression symptoms (excluding anhedonia).
resultsBoth hedonic capacity (
conclusionsHedonic capacity and DT were independently and transactionally associated with heightened PTSD symptom severity among trauma-exposed firefighters. These findings provide evidence for the utility in developing interventions that target DT and impaired hedonic capacity among firefighters, particularly those experiencing PTSD symptomatology. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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