Abstract

Brightness-duration relations for chromatic stimuli were studied using three pulse-to-background luminance relations: chromatic equal-luminance pulses (3.2 cd/m²) were presented as increments of 0.3 or 1.0 log units above a lower luminance achromatic background, or were presented in hue substitution, equated in luminance to the achromatic background, so that no spatio-temporal luminance transients occurred during stimulus presentation. Incremental pulses produced temporal brightness enhancement (the Broca-Sulzer phenomenon), but hue substitution pulses did not. Temporal brightness enhancement thus depends upon the occurrence of luminance transients and cannot be produced by pulsed-to-background brightness differences associated solely with chromaticity differences.

© 1979 Optical Society of America

Duration thresholds for chromatic stimuli

Joel Pokorny, Richard W. Bowen, Delwin T. Williams, and Vivianne C. Smith
J. Opt. Soc. Am. 69(1) 103-106 (1979)

Chromatic two-pulse resolution with and without luminance transients*

Richard W. Bowen, Delwin T. Lindsey, and Vivianne C. Smith
J. Opt. Soc. Am. 67(11) 1501-1507 (1977)

Visual Responses to Equally Bright Stimuli of Unequal Luminance

Judith Wheeler Onley and Robert M. Boynton
J. Opt. Soc. Am. 52(8) 934-940 (1962)

Psychophysical Responses to Homochromatic Stimuli of Equal Brightness but Unequal Luminance*

Judith Wheeler Onley and Charles E. Sternheim
J. Opt. Soc. Am. 57(2) 258-267 (1967)

Temporal facilitation and stroboscopic motion*

Halsey H. Matteson and Joel H. Lewis
J. Opt. Soc. Am. 69(1) 92-95 (1979)