眼球運動脱感作と再処理(Reprocessing)から表出(Exposure)セラピーまで : 共通するメカニズムへの証拠に対する再考と概観 From Eye Movement Desensitization and Reprocessing to Exposure Therapy : A Review of the Evidence for Shared Mechanisms
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Posttraumatic stress disorder (PTSD) is a condition that affects people in all cultures and throughout the lifespan. Since the introduction of posttraumatic stress disorder into diagnostic practice, a great deal of research has addressed its epidemiology, pathophysiology, and psychological and physiological mechanisms, as well as its treatment. A behavioral formulation of the disorder has prevailed among leading researchers in the field, and has proved heuristic in leading to efficacious treatments, e.g., exposure therapy. Eye movement desensitization and reprocessing (EMD/R), a recently developed intervention that claims to be a departure from this formulation, has received empirical support for its efficacy. The present article reviews the evidence supporting a behavioral formulation of eye movement desensitization and reprocessing, and suggests that it shares common mechanisms of action with exposure therapy. Greater research attention should be given to examining ways of rendering exposure-based therapies for posttraumatic stress disorder more tolerant and acceptable to clients and practitioners.