title: Set, satiation, and confusion: a reply to Sadler and Mefferd.
mesh_terms: D005556:Form Perception; D006801:Humans; D007088:Illusions; D009949:Orientation; D010469:Perceptual Distortion; D012718:Set, Psychology; D013028:Space Perception; D013997:Time Factors; D014785:Vision, Ocular; D014796:Visual Perception