Retroactive masking without spatial transients.
D000221:Adaptation, Ocular; D005403:Fixation, Ocular; D006801:Humans; D008029:Lighting; D010470:Perceptual Masking; D012160:Retina / Q000502:physiology; D013997:Time Factors; D014785:Vision, Ocular; D014792:Visual Acuity; D014794:Visual Fields; D014796:Visual Perception