Salk Institute Panda and Mure (IMAGE) Salk Institute Caption From left: Salk scientists Ludovic Mure and Satchin Panda uncover how certain retinal cells respond to artificial illumination. Credit Salk Institute Usage Restrictions with credit and related coverage. 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.