title: Diurnal rhythm in the human rod ERG.
abstract: Six normal subjects, monocularly entrained to a 14 hr light/10 hr dark cycle, showed a diurnal rhythm in the rod ERG of the entrained eye but not the unentrained eye. Thresholds in the entrained eye were significantly higher 1 1/2 hrs after light onset than at other times. This threshold increase occurred at a time when rod disc shedding has been observed histologically to be maximal in light-entrained animals.
mesh_terms: D000221:Adaptation, Ocular; D000293:Adolescent; D000328:Adult; D002940:Circadian Rhythm; D004596:Electroretinography; D006801:Humans; D010786:Photoreceptor Cells / Q000502:physiology*; D012374:Rod Cell Outer Segment / Q000502:physiology