Abstract: Post-traumatic stress disorder (PTSD) has long been clinical practice to use a three-part phased model in the treatment of trauma and the dissociative disorders. The phased treatment is an intrinsic element of the model presented throughout this article, which integrates the eye movement desensitization and reprocessing (EMDR) standard protocol and additional components: ego state therapy, attachment theory, and dissociative disorder treatment interventions. Although the researches on this model are still in its infancy, it is the current standard of care because of its efficacy with traumatized and dissociative-disordered clients.

Key words: trauma, post-traumatic stress disorder, eye movement desensitization and reprocessing, ego state therapy, three-part phased model, review