Dissociation, PTSD, and substance abuse: an empirical study.

Few studies have examined the relationship between posttraumatic stress disorder (PTSD), substance use disorder, and dissociation. We studied 77 women with current PTSD and substance dependence, classified into high- versus low-dissociation groups per the Dissociative Experiences Scale. They were compared on trauma- and substance-related symptoms, cognitions, coping skills, social adjustment, trauma history, psychiatric symptoms, and self-harm/suicidal behaviors. We found the high-dissociation group consistently more impaired than the low-dissociation group. Also, the sample overall evidenced relatively high levels of dissociation, indicating that even in the presence of recent substance use, dissociation remains a major psychological phenomenon. Indeed, the high-dissociation group reported stronger expectation that substances could manage their psychiatric symptoms. The high-dissociation group also had more trauma-related symptoms and childhood histories of emotional abuse and physical neglect. The discussion addresses methodology, the "chemical dissociation" hypothesis, and the need for a more nuanced understanding of how substances are experienced in relation to dissociative phenomena.

Domestic violence in women with PTSD and substance abuse.

This study reports rates of domestic violence for women with posttraumatic stress disorder (PTSD) and substance dependence. The Conflict Tactics Scale-Revised (CTS2) was used to assess the rates of both physical and psychological aggression, lifetime and current, by self and partner. Results showed substantial rates, both lifetime and current by both partner and self and, for a substantial number in the sample, for multiple events within the past year. Consistent with prior studies, analyses indicated that the correlation between self and partner negative relationship behaviors was high. A significant association was found between past-month substance use and increased self and partner negative relationship behaviors. The complex dynamics of women as both recipients and enactors of negative relationship behaviors are discussed.