A high proportion of female Yazidis who were former ISIS captives suffer from complex post-traumatic-stress disorder, according to a comprehensive study led by Bar-Ilan University researchers just published in World Psychiatry.With that in mind, the Bar-Ilan University team is planning to set up a training program for Kurdish mental-health workers.The women, all in their 20s, were surveyed over a two-month period in four refugee camps.“This main finding of over 50% C-PTSD prevalence cannot be emphasized enough, as PTSD and C-PTSD require different therapeutic interventions,” noted Dr. Yaakov Hoffman of Bar-Ilan’s interdisciplinary department of social sciences, who led the study.Following severe trauma, people may develop PTSD, but recently, specific diagnostic criteria were suggested for another psychiatric disorder following trauma, C-PTSD. While “ordinary” PTSD typically occurs following a single traumatic event, C-PTSD is typically associated with prolonged trauma where one’s destiny is under another’s control, and escape – from captivity, for example – is unfeasible. As opposed to PTSD, which can be triggered by trauma reminders, C-PTSD is conceived to be a more deeply rooted disorder that affects the very core of one’s self-organization.As Islamic State stormed Iraq and attempted to conquer the country in 2014, its members committed genocide against the Yazidi population, a Kurdish religious minority. Men were systematically executed. Women were captured, forced into sexual slavery and repeatedly raped, beaten, sold and locked away.Another important finding of the research is the greater sensitivity of victims with C-PTSD, compared to post-ISIS conditions. Although ISIS no longer poses a threat to them, they still feel less safe, and their current living conditions may exacerbate their symptoms.Hoffman therefore emphasizes that “NGOs working with such victims need to be particularly sensitive not only to the unique Yazidi culture, but also to the creation of an environment that is perceived by the former captives as protective, both on objective and subjective levels.”This study required extensive cooperation among three countries (Israel, Germany and Kurdistan) by a multidisciplinary group from psychology, psychiatry, life sciences, brain science, Arabic and communications departments.