Brain (IMAGE) University of Michigan Caption The circled portion of the older adult's brain on the left indicates the cross-talk between the two hemispheres that is not apparent in the younger brain on the right. Credit Rachael Seidler 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.