title: Duration of scotopic contrast hues.
mesh_terms: D000221:Adaptation, Ocular; D003118:Color Perception; D003623:Dark Adaptation; D006801:Humans; D008027:Light; D010786:Photoreceptor Cells / Q000502:physiology*; D012168:Retinal Pigments / Q000502:physiology
chemical_list: D012168:Retinal Pigments