On perceptual clarity.
D005133:Eye Movements; D006801:Humans; D008570:Memory, Short-Term; D008959:Models, Neurological; D009482:Neurophysiology; D011336:Probability; D012160:Retina / Q000502:physiology; D014785:Vision, Ocular; D014792:Visual Acuity; D014796:Visual Perception