BartleyS. H.NelsonT. M.Equivalence of various pulse-to-cycle fractions in producing critical flicker frequency. J. Op. Soc. Amer., 1960, in press.
5.
IvesH. E.Critical frequency relatism in scotopic vision. J. Op. Soc. Amer., 1922, 6, 254–268.
6.
RossR. T.Fusion frequency in different areas of the visual field. IV. Fusion frequency as a function of light-dark-ratio. J. gen. Psychol., 1943, 29, 129–144.