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Updated: Aug 20, 2026

Developing Neuroimaging Phenotypes of the Default Mode Network in PTSD: Integrating the Resting State, Working Memory, and Structural Connectivity
Published on: July 1, 2014
Factors associated with insomnia among civilians seeking treatment for PTSD: an exploratory study
Jason C DeViva1, Claudia Zayfert, Thomas A Mellman
1Department of Psychiatry, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire 03756-0001, USA. jason.deviva@dartmouth.edu
Abstract:
This study explored relationships between insomnia (as measured by Item 13 of the Clinician-Administered PTSD [Posttraumatic Stress Disorder] Scale) and other PTSD symptoms, comorbidity, and measures of depression, worry, and panic in a mixed-trauma sample of 143 treatment-seeking civilians with PTSD (median age 39.4 years, 83% female, 96% White). Regression analyses showed that, adjusting for sleep medication use, severity of nightmares and diminished interest in pleasurable activities accounted for unique variance in insomnia severity level. Severity of nightmares and depression accounted for unique variance in the presence of severe insomnia. Findings support a role for conditioning related to nightmares in the etiology of PTSD-related insomnia.
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