Neural probe (IMAGE) University of Massachusetts Amherst Caption The tip of the probe is about 0.2 millimeters wide and 0.05 millimeters thick. Credit UMass Amherst Usage Restrictions Image may only be used in connection to this study by Guangyu Xu 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.