MRI Light Detection 2 (IMAGE) Massachusetts Institute of Technology Caption The new sensor can be implanted in the brain to allow scientists to monitor electrical activity or light emitted by luminescent proteins. Credit Courtesy of the researchers Usage Restrictions Images for download are made available to non-commercial entities, press and the general public under a Creative Commons Attribution Non-Commercial No Derivatives license. You may not alter the images provided, other than to crop them to size. A credit line must be used when reproducing images. 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.