Reversible figures and the motion after-effect.
D000221:Adaptation, Ocular; D005366:Figural Aftereffect / Q000502:physiology*; D005556:Form Perception / Q000502:physiology*; D006801:Humans; D008297:Male; D009039:Motion Perception / Q000502:physiology*; D010364:Pattern Recognition, Visual / Q000502:physiology*