Individual Differences in Posttraumatic Distress: Problems with the DSM-IV Model
Open Access
- 1 February 1999
- journal article
- review article
- Published by SAGE Publications in The Canadian Journal of Psychiatry
- Vol. 44 (1), 21-33
- https://doi.org/10.1177/070674379904400103
Abstract
Objective: To evaluate the evidence concerning the role of threatening life events in accounting for clinically significant posttraumatic stress responses. Method: Research was examined to review the epidemiology, evidence of dose-response relations, and individual difference factors in accounting for variations in conditions, including posttraumatic stress disorder, after exposure to threatening events. Results: The evidence is significantly discrepant from the clinical Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) model. Greater distress arises from individual differences than from event characteristics. Important individual differences that interact with threat exposures include trait negative affectivity (neuroticism); beliefs about emotions, the self, the world, and the sources and consequences of danger; and preevent acts, disorders, and intelligence. Reasons for the discrepancies between the evidence and the current model of posttraumatic distress are proposed. Conclusion: In accounting for responses to threatening life events, the relatively minor contribution of event qualities compared with individual differences has significant treatment implications. Treatment approaches assuming that toxic event exposure creates a posttraumatic disorder fail to consider individual differences that could improve treatment efficacy.Keywords
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