An overview of research findings on the nature of posttraumatic stress disorder

In this article we review current knowledge about the nature of posttraumatic stress disorder (PTSD) in order to assist clinicians in the diagnosis and treatment of reactions to traumatic life events. The review is limited to information about PTSD in adults, although some of the material may generalize to child and adolescent populations. Information presented includes prevalence, course, and comorbidity. We also briefly summarize findings on information processing and psychobiology. After presenting research findings, we then discuss the assessment of trauma and PTSD. © 1997 John Wiley & Sons, Inc.