To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 GCaMP6 fluorescence changes in E5 hindbrain. The assembly of developing motor neurons depends on an interplay between spontaneous activity, type II cadherins and gap junctions Karli Montague, Andrew S. Lowe, Ana Uzquiano, Athene Knüfer, Marc Astick, Stephen R. Price, and Sarah Guthrie Development 2017. 144:830-836; doi: 10.1242/dev.144063 Download Original Video