Extension of EMDR vs. PC For Motor Vehicle Accident Trauma

This is an extension of a randomized clinical trial comparing eye movement desensitization and reprocessing (EMDR) to progressive counting (PC) for volunteers from the community who are distressed by the memory of a motor vehicle accident. The purpose of this extension is to add Phil Manfield's recently developed Flash technique as a precursor to both EMDR and PC, to see a) if that has any impact on participant retention, treatment effectiveness, or treatment efficiency; and b) if such impact is equivalent with EMDR and PC.