Orientation and spatial frequency channels in peripheral vision.
D000221:Adaptation, Ocular; D005556:Form Perception; D006801:Humans; D008266:Macula Lutea / Q000502:physiology; D008297:Male; D009039:Motion Perception; D009949:Orientation; D010783:Photometry; D013028:Space Perception; D013997:Time Factors; D014794:Visual Fields