Accession Number:

AD0631874

Title:

TEMPORAL FACTORS IN SUBJECTIVE COLOR,

Descriptive Note:

Corporate Author:

RAND CORP SANTA MONICA CALIF

Personal Author(s):

Report Date:

1966-03-01

Pagination or Media Count:

43.0

Abstract:

The Memorandum provides a synopsis of what is known about subjective-color sensations produced by temporal factors in the retinal luminous stimulus. Four principal psychophysical phenomena or effects involved in subjective color are identified and discussed. The Prevost-Fechner -Benham Effect refers essentially to the evocation of a color sensation that differs when the visual stimuli are presented intermittently rather than continuously. The Broca-Sulzer-Pieron Effect concerns the variations of color sensations with time. The Brucke-Bartley Effect refers to the enhanced brightness of visual stimuli when presented intermittently rather than continuously. The disappearance of visual sensation when the retinal image is artificially stabilized so that it falls continuously on the same receptors is termed the Ditchburn-Ratliff Effect. The use of the Prevost-Fechner-Benham Effect to obtain colored images on black-and-white television receivers is discussed to illustrate one technological application of subjective color. An unexpected appearance of the Prevost-Fechner -Benham Effect in a visual experiment is discussed to emphasize the dangers involved in a failure to consider subjective-color effects during the design of man-machine systems utilizing human visual characteristics. Author

Subject Categories:

  • Psychology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE