Superior-Inferior/Stable-Unstable Hierarchy (IMAGE) NIH/National Institute of Mental Health Caption Brain activity was much higher in key brain centers when participants viewed a superior player in an unstable social hierarchy -- when participants had the possibility of upward mobility. Credit Caroline Zink, Ph.D., NIMH Genes Cognition and Psychosis Program 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.