Brain Molecules Light (IMAGE) Institute for Bioengineering of Catalonia (IBEC) Caption Controlling of brain state transitions using a molecule responsive to light. Credit IBEC/IDIBAPS Usage Restrictions Give credit to IBEC/IDIBAPS 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.