Binkley, S Regulation of pineal rhythms in chickens: refractory period and nonvisual light perception. [electronic resource] - Endocrinology Apr 1975 - 848-53 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. ISSN: 0013-7227 Standard No.: 10.1210/endo-96-4-848 doi Subjects--Topical Terms: Acetyltransferases--metabolismAnimalsChickens--physiologyCircadian RhythmDarknessHydroxyindoleacetic AcidLightMelatonin--biosynthesisMethyltransferases--metabolismOcular Physiological PhenomenaPineal Gland--physiologySerotoninTime Factors