Luminance discrimination of separated flashes: the effect of background luminance and the shapes of T.V.I. curves.
D003623:Dark Adaptation; D004056:Differential Threshold; D005425:Flicker Fusion; D006801:Humans; D010775:Photic Stimulation; D011601:Psychophysics; D013997:Time Factors; D014785:Vision, Ocular