Brain Stimulation Helps Parkinson's Patients (IMAGE) Johns Hopkins Medicine Caption A volunteer models the noninvasive, electrical stimulation device used to help patients with Parkinson's disease. Credit Reza Shadmehr, Johns Hopkins Medicine 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.