Two types of neurones sensitive to motion in the optic lobe of the fly.
D000818:Animals; D001522:Behavior, Animal; D004175:Diptera; D004594:Electrophysiology; D005071:Evoked Potentials; D008636:Mesencephalon / Q000502:physiology*; D009068:Movement; D009474:Neurons / Q000502:physiology*; D009899:Optic Lobe, Nonmammalian / Q000502:physiology