Topic: Drosophila T4

Evolution has equipped vertebrates and invertebrates with neural circuits that selectively encode visual motion. In both flies and mice, early visual circuits separately detect the movement of light and dark edges. Strong parallels have been noted between the two systems in their anatomy, circuitry, and the suite of computations that they perform. However, because their direction-selective cells have different morphologies and employ different neurotransmitters and receptors, the similarities between them exist not at the molecular level, but at the algorithmic level. While similarities in the