Brain Metabolism Changes with Vagus Nerve Stimulation (audio) Washington University School of Medicine Share Print E-Mail Loading audio... Caption Implantable vagus nerve stimulators can relieve depression in some patients who can't be helped by standard antidepressant therapies. Now researchers at Washington University School of Medicine in St. Louis have found that those stimulators appear to bring about changes in brain activity weeks, or even months, before those depressed patients begin to feel better. Credit Washington University BioMed Radio Usage Restrictions None Share Print E-Mail 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.