Transcranial Magnetic Stimulation (IMAGE) Drexel University Caption John Medaglia, PhD, uses a noninvasive brain stimulation technique called transcranial magnetic stimulation (TMS) to understand how different signals travel across the brain while study participants complete language tasks. Credit Drexel University Usage Restrictions Please credit to Drexel University 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.