Alterations in critical flicker frequency as a function of age and light: dark ratio.

Author(s)
McFarland, R.A. Warren, A.B. & Karis, C.
Year
Abstract

Binocular critical flicker frequencies (CFF's) were determined for 108 test persons in age from 13 to 89 year. Major results were (a): The relationship between CFF and age is linear and negative for all light: dark ratio levels under both conditions of surround luminance and (b) the decrement of CFF with age is a function of the light-time percentage of the flicker-cycle. The differentiation between age groups is more pronounced at the lower light-time percentages.

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Publication

Library number
B 9183 fo /83.2/
Source

Journal of Experimental Psychology, Vol. 56 (1958), No. 6 (December), p. 529-538, 3 graph., 16 ref.

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