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2013

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/53393

Paranoia and post-traumatic stress disorder in the months after a physical assault: a longitudinal study examining shared and differential predictors.

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http://dx.doi.org/10.1017/S003329171300038X

Abstract

Background: Being physically assaulted is known to increase the risk of the occurrence of post-traumatic stress disorder (PTSD) symptoms but it may also skew judgements about the intentions of other people. The objectives of the study were to assess paranoia and PTSD after an assault and to test whether theory-derived cognitive factors predicted the persistence of these problems. Method: At 4 weeks after hospital attendance due to an assault, 106 people were assessed on multiple symptom measures (including virtual reality) and cognitive factors from models of paranoia and PTSD. The symptom measures were repeated 3 and 6 months later. Results: Factor analysis indicated that paranoia and PTSD were distinct experiences, though positively correlated. At 4 weeks, 33% of participants met diagnostic criteria for PTSD, falling to 16% at follow-up. Of the group at the first assessment, 80% reported that since the assault they were excessively fearful of other people, which over time fell to 66%. Almost all the cognitive factors (including information-processing style during the trauma, mental defeat, qualities of unwanted memories, self-blame, negative thoughts about self, worry, safety behaviours, anomalous internal experiences and cognitive inflexibility) predicted later paranoia and PTSD, but there was little evidence of differential prediction. Conclusions: Paranoia after an assault may be common and distinguishable from PTSD but predicted by a strikingly similar range of factors.

Subject

Paranoia, Trastorn per estrès posttraumàtic, Violència, Delictes sexuals

Subject (English)

Paranoia, Post-traumatic stress disorder, Violence, Sex crimes

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Articles publicats en revistes (Psicologia Clínica i Psicobiologia)

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FREEMAN, Daniel, et al. Paranoia and post-traumatic stress disorder in the months after a physical assault: a longitudinal study examining shared and differential predictors. Psychological Medicine. 2013. Vol. 43, num. 12, pags. 2673-2684. ISSN 0033-2917. [consulted: 15 of August of 2026]. Available at: https://hdl.handle.net/2445/53393

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