Increment threshold and detection latency in the rod and cone systems.
D003623:Dark Adaptation; D004192:Discrimination, Psychological / Q000502:physiology; D006801:Humans; D008297:Male; D008959:Models, Neurological; D010783:Photometry; D010786:Photoreceptor Cells / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology*; D012684:Sensory Thresholds / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*