VNS Device (IMAGE) Washington University School of Medicine Caption Charles Conway, MD, holds a vagus nerve stimulator. A national study led by researchers at Washington University School of Medicine in St. Louis indicates that people treated with nerve stimulation experience significant improvements in quality of life, even when their depression symptoms don't completely dissipate. Credit Matt Miller 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.