Posttraumatic stress disorder (PTSD) belongs to the most frequent anxiety disorders. Despite a broad body of evidence concerning neurobiological correlates of this illness, the pathomechanisms of PTSD are still poorly understood. This illustrates the need to establish animal models of this disorder. Recently, PTSD model has become a somewhat fashionable term used in animal studies for almost ev...

This study used structural equation modeling (SEM) to evaluate the relative strength of associations between combat exposure, four posttraumatic stress disorder (PTSD) symptom factors, and functional impairment as indexed by Global Assessment of Functioning (GAF) scores in a sample of 315 veterans assessed at a Department of Veterans Affairs PTSD clinic. Results showed that the association betw...

Recent research has highlighted the etiological role of sleep disturbance in posttraumatic stress disorder (PTSD); however it is currently unknown how daily changes in sleep are associated with next-day PTSD symptoms. Furthermore, sleep is critical for maintaining appropriate affect, leading some to hypothesize that affective dysfunction may account for the link between sleep disturbances and P...

Posttraumatic stress disorder (PTSD) is prevalent among adolescents following natural disasters, and the trauma experiences represent a critical risk factor for PTSD. Nevertheless, the underlying mechanism of adolescents' PTSD following trauma experiences remains unclear. Rumination appears to be a mediating factor between trauma experiences and PTSD, and social support may moderate this mediat...

We used actor-partner interdependence modeling to explore associations among attachment-related dyadic processes, posttraumatic stress disorder (PTSD) in war veterans, and secondary traumatic stress (STS) in their wives. A sample of 157 Israeli couples (85 former prisoners of war and their wives and a comparison group of 72 veterans not held captive and their wives) completed self-report scales...

OBJECTIVE This study tested theoretical models of the relationship between pain and posttraumatic stress disorder (PTSD) in children with traumatic brain injury (TBI). METHODS Participants consisted of 195 children aged 6-15 years presenting to 1 of 3 Australian hospitals following a mild-severe TBI. Children were assessed at 3, 6, and 18 months after their accident for PTSD (via the Clinicia...

This study compared health status across four trauma/posttraumatic stress disorder (PTSD) groups of older adults with depression, anxiety, and/or at-risk drinking who attended primary care appointments (N = 1,199; mean age = 73.5 yr), mostly at Department of Veterans Affairs hospitals. The trauma and PTSD categories were PTSD (n = 81), partial PTSD (n = 127), trauma only (n = 323), and no traum...

Relatively little is known about the course of PTSD symptoms over time following trauma exposure. Accordingly, this study utilized a specialized structural equation modeling approach, growth mixture modeling, to examine the trajectory of PTSD symptoms across three time points in a sample of Gulf War veterans (n at Time 1 = 2,949, n at Time 2 = 2,313, and n at Time 3 = 1,327). Results were most ...

Depression and posttraumatic stress disorder (PTSD) are common after trauma, but it remains unclear what factors determine which disorder a trauma survivor will develop. A prospective longitudinal study of 222 assault survivors assessed candidate predictors derived from cognitive models of depression and PTSD at 2 weeks posttrauma (N = 222), and depression and PTSD symptom severities (N = 183, ...

Peritraumatic reactions such as fear, psychic and somatoform dissociation, tonic immobility, data-driven processing, mental defeat are important in the etiology of posttraumatic stress disorder (PTSD). However, current measures overlap conceptually do not clearly identify distinct peritraumatic processes. It is known which processes uniquely associated with PTSD. We investigated factor structur...