Abstract

When a uniform field is intermittently illuminated, it will often appear to contain various geometric patterns. The present study deals with the threshold luminance at which such spurious patterns appear and with the dependence of this threshold upon the frequency of intermittency and upon the wavelength of the stimulus. The log threshold luminance increases roughly linearly with the frequency of intermittency over the major part of the frequency range tested. The threshold is affected by stimulus wavelength; blue or green require higher luminances than yellow or red. However, these differences of threshold vary with frequency of intermittency and reach maxima at approximately 14 cps. The wavelength effects are modified by chromatic preadaptation.

© 1971 Optical Society of America

Subjective patterns in a flickering field: Binocular vs monocular observation

Arnulf Remole
J. Opt. Soc. Am. 63(6) 745-748 (1973)

Luminance thresholds for perceived movement in a flickering field

Arnulf Remole
J. Opt. Soc. Am. 64(8) 1133-1135 (1974)

Flicker Heterochromatic Threshold-Reduction Factor with Two or More Flickering Fields

Mitsuo Ikeda
J. Opt. Soc. Am. 61(2) 261-266 (1971)

Temporal Summation and Its Limit for Wavelength Changes: An Analog of Bloch’s Law for Color Vision

D. Regan and C. W. Tyler
J. Opt. Soc. Am. 61(10) 1414-1421 (1971)

Sustained Bidwell Afterimages: Effects of Disc Rotation Speed, Color-Pulse Chromaticity, and Color-Pulse Luminance*†

Lawrence Wheeler and Richard C. LaForce
J. Opt. Soc. Am. 57(3) 386-393 (1967)