The tilt illusion: length and luminance changes of induction line and third (disinhibiting) line.
D002540:Cerebral Cortex / Q000502:physiology; D005556:Form Perception / Q000502:physiology; D006801:Humans; D007088:Illusions / Q000502:physiology; D009433:Neural Inhibition; D009903:Optical Illusions / Q000502:physiology; D009949:Orientation / Q000502:physiology; D012858:Size Perception / Q000502:physiology