There have been two Randomized Clinical Trials (RCTs) of OEI with PTSD. The first of these involved a group of mixed trauma survivors, randomly assigned to either a treatment or delayed treatment control group. Traumas included: Holding a spouse after suicide by gunshot, cutting down the body of someone who had hung himself (known to the survivor), experiencing a violent rape, being the victim of an attempted homicide, waking to see a close friend dead of a drug overdose, and motor vehicle accidents. OEI treatment involved only three one-hour sessions of OEI, using only one of the OEI techniques (‘switching’). A recent journal article in which this study is reported:
The most recent RCT was a mixed method, comparative experimental treatment outcome study. It involved 25 women with PTSD following sexual assaults, spanned 18 months, and included qEEG assessments with script-driven symptom provocation on four occasions. The details of this study are provided in the first research report down the margin to the right. A list of OEI publications to date (including theses and conference papers) is included in that summary.