To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S5. Similar in vivo activity of GCaMP6s- and GCaMP6f-expressing astrocytes. Five-minute movie, taken at 1 Hz and shown at 15 fps, of Lck-GCaMP6f–expressing astrocytes. Astrocytes regulate cortical state switching in vivo Kira E. Poskanzer, and Rafael Yuste PNAS. 2016. DOI: 10.1073/pnas.1520759113 Download Original Video Browse All Videos »