title: Measurements of the quantum efficiency of discrimination in human scotopic vision.
authors.forename: H B
authors.initials: HB
authors.lastname: Barlow
mesh_terms: D003623:Dark Adaptation / Q000502:physiology*; D004192:Discrimination, Psychological / Q000502:physiology*; D006801:Humans; D055254:Night Vision; D010775:Photic Stimulation / Q000379:methods*; D012684:Sensory Thresholds / Q000502:physiology*; D014785:Vision, Ocular / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*