material sample (IMAGE) Rice University Caption Magnetoelectric nonlinear metamaterials are 120 times faster at stimulating neural activity compared to previously used magnetic materials. Credit (Image courtesy of the Robinson lab/Rice University) Usage Restrictions Must credit Robinson lab/Rice University. License Original 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.