Control (IMAGE) Columbia University Irving Medical Center Caption Cerebral blood volume (CBV) maps are shown for an individual control. Maps are color-coded with warmer colors indicating greater CBV or activity. Credit Columbia University Medical Center 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.