Salk UCSD SCN/IPRGC Video (VIDEO) Salk Institute This video is under embargo. Please login to access this video. Caption This video combines advanced microscopy images with illustrations to simulate moving through a specific region of the brain called the suprachiasmatic nucleus (SCN), tracing the paths of IPRGCs among neurons. Credit Credit: Keun-Young Kim/UC San Diego 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.