title: Visual threshold: human scotopic luminosity functions determined with optokinetic nystagmus.
mesh_terms: D003623:Dark Adaptation; D004585:Electrooculography; D005133:Eye Movements; D005260:Female; D006801:Humans; D009039:Motion Perception; D010775:Photic Stimulation; D011601:Psychophysics; D014785:Vision, Ocular