Alex Schlegel, Dartmouth (IMAGE) Dartmouth College Caption Dartmouth graduate student Alex Schlegel reviews brain scans to elucidate the changes of white matter in action. Credit Eli Burak 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.