EFFECT OF STIMULUS SIZE, DURATION, AND RETINAL LOCATION UPON THE APPEARANCE OF COLOR

Abstract

The names given to special visual stimuli from 480 to 610 mu and to a white-light test stimulus were obtained, using two diameters of stimulus fields. The experiment was designed to test the hypothesis that normal color vision is replaced by tritanopic vision in all parts of the retina if the total luminous energy is sufficiently reduced. The results obtained with four observers confirm the presence of tritanopia when small, brief stimuli are viewed foveally, but fail to confirm it in the periphery. Reduced color vision in the periphery is apparently characteristic of deuteranomaly, which ends ultimately in colorless vision. These results are discussed as giving support to the notion that foveal tritanopia is due to the depressed sensitivity of the blue receptor mechanism found in the central fovea.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1968
Accession Number
AD0698087

Entities

People

  • Donald O. Weitzman
  • Joann S. Kinney

Organizations

  • Naval Submarine Medical Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Boundaries
  • Classification
  • Color Vision
  • Frequency
  • Losses
  • Navy
  • Neurobehavioral Manifestations
  • Observers
  • Perception
  • Peripheral Vision
  • Recognition
  • Security
  • Sensation
  • Sensitivity
  • Short Wavelengths
  • Submarine Bases
  • White Light

Fields of Study

  • Psychology

Readers

  • Theoretical Analysis.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.