Different brain signals (IMAGE) University of Kansas Caption BOLD activation contrast map of force compared to rest for healthy controls vs. FMR1 premutation carriers. Relative to FMR1 premutation carriers, healthy controls demonstrated greater BOLD signal in extrastriate cortex during force relative to rest. Credit McKinney, et al. 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.