Brain Scan (IMAGE) University of Southern California Caption Brain activity imaged by an fMRI while participants with stroke viewed others performing an action. Blue areas show decreased activity (likely where there are lesions caused by a stroke) while red areas show increased activity (thought to be regions of the brain working harder to make up for the damaged regions). Credit Image courtesy of Kathleen Garrison Usage Restrictions For news articles only 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.