Orientation Selectivity Sharpens Motion Detection in Drosophila

  title={Orientation Selectivity Sharpens Motion Detection in Drosophila},
  author={Yvette E. Fisher and Marion A. Silies and Thomas R Clandinin},
Detecting the orientation and movement of edges in a scene is critical to visually guided behaviors of many animals. What are the circuit algorithms that allow the brain to extract such behaviorally vital visual cues? Using in vivo two-photon calcium imaging in Drosophila, we describe direction selective signals in the dendrites of T4 and T5 neurons, detectors of local motion. We demonstrate that this circuit performs selective amplification of local light inputs, an observation that constrains… CONTINUE READING