MRI Scans of Gray Matter Volume (IMAGE) University of Chicago Medical Center Caption Cortical regions of significantly reduced regional grey matter volume in OSA over control subjects (P < 0.01) displayed in yellow on the cortical surface on a single subject in MNI space. Credit Mona Philby, Paul Macey, Richard Ma, Rajesh Kumar, David Gozal and Leila Kheirandish-Gozal 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.