Attributional negativity bias and acute stress disorder symptoms mediate the association between trauma history and future posttraumatic stress disorder.

Autor: Webb EK; Division of Depression and Anxiety, McLean Hospital, Belmont, Massachusetts, USA.; Department of Psychiatry, Harvard Medical School, Massachusetts, USA., Timmer-Murillo SC; Division of Trauma & Acute Care Surgery, Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA., Huggins AA; Brain Imaging and Analysis Center, Duke University, Durham, North Carolina, USA., Tomas CW; Division of Epidemiology and Social Sciences, Institute for Health Equity, Medical College of Wisconsin, Milwaukee, Wisconsin, USA., deRoon-Cassini TA; Division of Trauma & Acute Care Surgery, Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA., Larson CL; Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin, USA.
Jazyk: angličtina
Zdroj: Journal of traumatic stress [J Trauma Stress] 2023 Aug; Vol. 36 (4), pp. 785-795. Date of Electronic Publication: 2023 Jun 20.
DOI: 10.1002/jts.22942
Abstrakt: Individuals who have experienced more trauma throughout their life have a heightened risk of developing posttraumatic stress disorder (PTSD) following injury. Although trauma history cannot be retroactively modified, identifying the mechanism(s) by which preinjury life events influence future PTSD symptoms may help clinicians mitigate the detrimental effects of past adversity. The current study proposed attributional negativity bias, the tendency to perceive stimuli/events as negative, as a potential intermediary in PTSD development. We hypothesized an association between trauma history and PTSD symptom severity following a new index trauma via heightened negativity bias and acute stress disorder (ASD) symptoms. Recent trauma survivors (N =189, 55.5% women, 58.7% African American/Black) completed assessments of ASD, negativity bias, and lifetime trauma 2-weeks postinjury; PTSD symptoms were assessed 6 months later. A parallel mediation model was tested with bootstrapping (10,000 resamples). Both negativity bias, Path b 1 : β = -.24, t(187) = -2.88, p = .004, and ASD symptoms, Path b 2 : β = .30, t(187) = 3.71, p < .001, fully mediated the association between trauma history and 6-month PTSD symptoms, full model: F(6, 182) = 10.95, p < .001, R 2 = .27; Path c': β = .04, t(187) = 0.54, p = .587. These results suggest that negativity bias may reflect an individual cognitive difference that can be further activated by acute trauma. Moreover, negativity bias may be an important, modifiable treatment target, and interventions addressing both acute symptoms and negativity bias in the early posttrauma period may weaken the link between trauma history and new-onset PTSD.
(© 2023 International Society for Traumatic Stress Studies.)
Databáze: MEDLINE
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