Retinal vs. phenomenal determinants of the horizontal-vertical illusion.
D005556:Form Perception; D006257:Head; D006801:Humans; D007088:Illusions; D009949:Orientation; D010469:Perceptual Distortion; D011187:Posture; D012029:Refraction, Ocular; D012160:Retina / Q000502:physiology*; D012858:Size Perception