skip to main content
Resource type Show Results with: Show Results with: Search type Index

The peripheral flicker effect: desensitization of the luminance pathway by static and modulated light

Demarco, P J ; Brigell, M G ; Gordon, M

Vision research, September 1997, Vol.37(17), pp.2419-25 [Peer Reviewed Journal]

Full text available

View all versions
Citations Cited by
  • Title:
    The peripheral flicker effect: desensitization of the luminance pathway by static and modulated light
  • Author: Demarco, P J ; Brigell, M G ; Gordon, M
  • Subjects: Contrast Sensitivity -- Physiology ; Fovea Centralis -- Radiation Effects ; Photic Stimulation -- Methods ; Visual Pathways -- Physiology
  • Is Part Of: Vision research, September 1997, Vol.37(17), pp.2419-25
  • Description: Previous studies have shown that luminance flicker, presented peripheral to a foveal test target, increases thresholds for target detection: the peripheral flicker (PF) effect. These studies have also shown that thresholds are elevated more for luminance targets, relative to chromatic targets. In the present study we examined the specificity of the PF effect on the luminance mechanism and assessed the contribution of modulated stray-light to the test field, as well as longer range spatial interactions. We found that the presence of a foveal luminance pedestal, as well as PF, caused a notch to appear in the spectral sensitivity function around 570 nm. This result confirms the hypothesis that the PF effect decreases the sensitivity of the luminance pathway. To assess the contribution of stray-light to the PF effect, we modulated a luminance pedestal without the presence of PF in order to simulate the stray-light effect in isolation. A decrease in sensitivity for wavelengths around 570 nm...
  • Language: English
  • Identifier: ISSN: 0042-6989 ; PMID: 9381677 Version:1

Searching Remote Databases, Please Wait