The structure of peritraumatic reactions and their relationship with PTSD among disaster survivors.

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 structure six standard their relationship four Diagnostic Statistical Manual Mental Disorders (5th ed.; DSM-5; American Psychiatric Association, 2013) PTSD symptom clusters. Measures were administered to 308 earthquake survivors high levels exposure traumatic events. Items comprising using exploratory structural equation modeling, identified five response factors. from most loaded on multiple dissociation significantly predicted all Cognitive overload intrusions, avoidance, alterations arousal reactivity. Immobility intrusions whereas distress negative cognition mood Because key role play development PTSD, findings likely benefit study etiological mechanisms, prediction those at greatest risk, design preventative interventions. (PsycInfo Database Record (c) 2021 APA, rights reserved).