von Reyn, C.R. (2022). Feature encoding: How back-to-front motion guides the polite fly.  Curr. Biol. 32(11): R513--RR515.

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Motion of a visual image from back-to-front across a visual field can provide an early-stage cue for impending collisions. A new study reveals visual feature encoding neurons that drive behavioral responses to back-to-front motion in the fly Drosophila melanogaster.