Yogyakarta, 8 September 2026 — An international collaborative study involving researcher from the Faculty of Psychology, Universitas Gadjah Mada (UGM), Riangga Novrianto, S.Psi., M.Psi., Psychologist, has found that specific post-traumatic symptoms, namely re-experiencing, or reliving traumatic experiences, and the dissociative symptom of depersonalization, significantly predict the severity of depression six months later.