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The Effects of Modi...
The Effects of Modifying Dysfunctional Appraisals in Posttraumatic Stress Disorder Using a Form of Cognitive Bias Modification : Results of a Randomized Controlled Trial in an Inpatient Setting
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Woud, Marcella L. (författare)
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Blackwell, Simon E. (författare)
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Shkreli, Lorika (författare)
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Würtz, Felix (författare)
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Cwik, Jan Christopher (författare)
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Margraf, Jürgen (författare)
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- Holmes, Emily A. (författare)
- Karolinska Institutet,Uppsala universitet,Institutionen för psykologi,Department of Clinical Neuroscience, Psychology, Karolinska Institutet, Stockholm, Sweden
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Steudte-Schmiedgen, Susann (författare)
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Herpertz, Stephan (författare)
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Kessler, Henrik (författare)
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(creator_code:org_t)
- 2021-02-23
- 2021
- Engelska.
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Ingår i: Psychotherapy and Psychosomatics. - : S. Karger. - 0033-3190 .- 1423-0348. ; 90:6, s. 386-402
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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http://kipublication...
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Abstract
Ämnesord
Stäng
- Introduction Dysfunctional appraisals about traumatic events and their sequelae are a key mechanism in posttraumatic stress disorder (PTSD). Experimental studies have shown that a computerized cognitive training, cognitive bias modification for appraisals (CBM-APP), can modify dysfunctional appraisals and reduce analogue trauma symptoms amongst healthy and subclinical volunteers.Objective We aimed to test whether CBM-APP could reduce dysfunctional appraisals related to trauma reactions in PTSD patients, and whether this would lead to improvements in PTSD symptoms.Methods We compared CBM-APP to sham training in a parallel-arm proof-of-principle double-blind randomized controlled trial amongst 80 PTSD patients admitted to an inpatient clinic. Both arms comprised a training schedule of 8 sessions over a 2-week period and were completed as an adjunct to the standard treatment programme.Results In intention-to-treat analyses, participants receiving CBM-APP showed a greater reduction in dysfunctional appraisals on a scenario task from pre- to posttraining (primary outcome) assessments, compared to those receiving sham training (d = 1.30, 95% CI 0.82-1.80), with between-group differences also found on the Posttraumatic Cognitions Inventory (PTCI; d = 0.85, 95% CI 0.39-1.32) and the PTSD Checklist for DSM-5 (PCL-5; d = 0.68, 95% CI 0.23-1.14), but not for long-term cortisol concentrations (d = 0.25, 95% CI -0.28 to 0.78). Reductions in dysfunctional appraisals assessed via the scenario task correlated with reductions on the PTCI, PCL-5, and hair cortisol concentrations from pre- to posttraining time points.Cocnclusions Results support dysfunctional appraisals as a modifiable cognitive mechanism, and that their proximal modification transfers to downstream PTSD symptoms. These findings could open new avenues for improving present therapeutic approaches.
Ämnesord
- SAMHÄLLSVETENSKAP -- Psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology (hsv//eng)
Nyckelord
- Posttraumatic stress disorder
- Dysfunctional appraisals
- Cognitive bias modification
- Cortisol
- Intrusive memories
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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