Characterization of Proprioceptive System Dynamics in Behaving Drosophila Larvae Using High-Speed Volumetric Microscopy

？ High-speed, 3D SCAPE microscopy is used to image freely moving Drosophila larvae ？ Calcium activity in proprioceptive neurons is coincident with dendrite deformation ？ Proprioceptor subtypes show sequential activity patterns during forward crawling ？ Sensors activate in different combinations during complex turns and retraction