You can get the concept of: Optomotorny response, temporal resolution, compound eyes, stroboscopic drum.
Principle: Behavioural physiological vospriyatik time. Watching the behavior of flies in stroboskoppicheskom drum and determining the ratio of left and right circular motions made by the fly, placed in the center of the drum is determined by the temporal resolution of the eye flies. Movement (optomotornaya reaction) indicate whether a fly to allow strobe object at a constant speed.
