Change of threshold after light-adaptation of the chromatic response of the frog's pineal organ (Stirnorgan).
D000200:Action Potentials; D000221:Adaptation, Ocular; D000818:Animals; D003118:Color Perception / Q000502:physiology*; D003623:Dark Adaptation; D010870:Pineal Gland / Q000502:physiology*; D011893:Rana esculenta / Q000502:physiology*; D011898:Ranidae; D012684:Sensory Thresholds; D013053:Spectrophotometry