casereports combatdisorders desensitization dissociation(psychology) dissociativedisorders ego ego(psychology) eyemovementdesensitizationreprocessing eyemovements grieftherapy hypnosis hypnotism methods post-traumatic post-traumaticstressdisorder psychictrauma psychologic psychologicaltheory psychotherapy spiritualism stressdisorders substance-relateddisorders substanceabuse therapeuticuse therapy treatment