title: Extraretinal photoreception in chickens: entrainment of the circadian locomotor activity rhythm.
mesh_terms: D000818:Animals; D001766:Blindness / Q000503:physiopathology*; D002645:Chickens; D002940:Circadian Rhythm / Q000528:radiation effects*; D008027:Light; D009043:Motor Activity / Q000528:radiation effects*; D010786:Photoreceptor Cells / Q000502:physiology* / Q000528:radiation effects