Analogous motion illusion in man and fly.
D000818:Animals; D004331:Drosophila melanogaster / Q000502:physiology*; D006801:Humans; D007088:Illusions / Q000502:physiology*; D009039:Motion Perception / Q000502:physiology*; D009903:Optical Illusions / Q000502:physiology*; D010786:Photoreceptor Cells / Q000502:physiology