Retainer Electrodes (IMAGE) Texas A&M University Caption Top and bottom view of the retainer containing the electrodes for intraoral electrical stimulation. Credit Dr. Hangue Park, Texas A&M Engineering Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.