To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S1. Representative images of circadian rhythms of VIP-CreAAV-Per2-dVenus (Left) and VIP-Cre AAV-Cry1-dVenus (Right) in the cultured SCN slice. (Scale bar: 100 µm.) Long-term in vivo recording of circadian rhythms in brains of freely moving mice Long Mei, Yanyan Fan, Xiaohua Lv, David K. Welsh, Cheng Zhan, and Eric Erquan Zhang PNAS. 2018. 115:4276-4281 DOI: 10.1073/pnas.1717735115 Download Original Video Browse All Videos »