Visual backward masking by a flash of light: a study of u-shaped detection functions.
D004192:Discrimination, Psychological; D005246:Feedback; D005403:Fixation, Ocular; D005556:Form Perception; D006801:Humans; D010470:Perceptual Masking; D010775:Photic Stimulation; D013028:Space Perception; D013997:Time Factors; D014796:Visual Perception