Inclusion Criteria.  DTD diagnosis as measured by the DTD interview (using standard scoring criteria) or partial PTSD diagnosis as measured by the CAPS. A history of at least two forms of trauma, at least one of which must be interpersonal in nature (sexual, physical or psychological maltreatment, neglect, abandonment or impaired caregiving) as indicated on the Trauma History Profile (THP).  Exclusion Criteria.  Serious illness that is not stabilized. GAF < 40. Past diagnosis of autism spectrum disorder, mental retardation, or schizophrenia. Current psychotic disorder or established organic impairment (e.g., TBI). Active suicidal risk, self-mutilation or homicidal behavior toward others within the past 3 months, as judged by the PI. Previous ARC treatment. Any other condition that might interfere with the person's capacity to give informed consent, or to adhere to the study protocol.