Here we describe a light-dark preference test for Drosophila larva. This assay provides information about innate and circadian regulation of light sensing and processing photobehavior.
Farca Luna, A. J., von Essen, A. M. H. J., Widmer, Y. F., Sprecher, S. G. Light Preference Assay to Study Innate and Circadian Regulated Photobehavior in Drosophila Larvae. J. Vis. Exp. (74), e50237, doi:10.3791/50237 (2013).