title: Wavelength discrimination by the goldfish near absolute visual threshold.
mesh_terms: D000221:Adaptation, Ocular; D000818:Animals; D003118:Color Perception / Q000502:physiology*; D003214:Conditioning, Classical / Q000502:physiology; D003530:Cyprinidae / Q000502:physiology*; D004192:Discrimination, Psychological / Q000502:physiology*; D006054:Goldfish / Q000502:physiology*; D010786:Photoreceptor Cells / Q000502:physiology; D013053:Spectrophotometry; D014785:Vision, Ocular / Q000502:physiology