title: [Optical illusions--size constancy and perspective: the Beuchet chair--or tongue piercing].
authors: Bernd
authors: B
authors: Lingelbach
mesh_terms: D046288:Body Piercing; D003867:Depth Perception / Q000502:physiology*; D004215:Distance Perception / Q000502:physiology*; D006801:Humans; D009903:Optical Illusions / Q000502:physiology*; D009949:Orientation / Q000502:physiology*; D012160:Retina / Q000502:physiology; D012858:Size Perception / Q000502:physiology*; D014741:Video Recording