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- Title
The short-term dynamics of posttraumatic stress disorder symptoms during the acute posttrauma period.
- Authors
Price, Matthew; Legrand, Alison C.; Brier, Zoe M. F.; Gratton, Jennifer; Skalka, Christian
- Abstract
<bold>Background: </bold>The manner in which posttraumatic stress disorder (PTSD) develops remains largely unknown. PTSD is comprised of 20 symptoms across 4 clusters. These clusters were hypothesized to reflect a failure of recovery model in which intrusive symptoms appear first. Intrusive symptoms led to avoidance of trauma-related stimuli, which resulted in sustained arousal. The sustained arousal ultimately led to dysphoria.<bold>Methods: </bold>This hypothesized symptom progression was evaluated during the acute posttrauma period (the first 30 days postevent). Participants (N = 80) reported their PTSD symptoms for 30 days via mobile devices. Using a short-term dynamic modeling framework, a temporal and contemporaneous model of PTSD symptoms was obtained.<bold>Results: </bold>In the temporal network, a fear-conditioning component was identified that supported the hypothesized set of relations among symptom clusters. The contemporaneous network was classified by two subnetworks. The first corresponded to a fear-conditioning model that included symptoms of intrusions and avoidance. The second included symptoms of dysphoria and arousal.<bold>Conclusions: </bold>These findings suggest that, after a trauma, there may be a fear-conditioning process that involves intrusions, avoidance, and arousal symptoms. Dysphoric symptoms were also present but developed as a partially distinct component.
- Subjects
POST-traumatic stress disorder; TRAUMA therapy; TIME-varying networks
- Publication
Depression & Anxiety (1091-4269), 2020, Vol 37, Issue 4, p313
- ISSN
1091-4269
- Publication type
journal article
- DOI
10.1002/da.22976