Myelin on Neurons (image) Harvard University Caption This is a computer image of three neurons showing differences in myelin. Credit Daniel Berger and Giulio Tomassy/Harvard University Usage Restrictions This image may only be used with stories about the research cited in the attached release. 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.