September 2021
Volume 21, Issue 9
Open Access
Vision Sciences Society Annual Meeting Abstract  |   September 2021
Saccadic Suppression on Color and Luminance: Evidence from SSVEPs
Author Affiliations & Notes
  • Yuan Zhang
    Shanghai University of Sports
  • Jing Chen
    Shanghai University of Sports
  • Footnotes
    Acknowledgements  Natural Science Foundation of China, 31900758
Journal of Vision September 2021, Vol.21, 1883. doi:
  • Views
  • Share
  • Tools
    • Alerts
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Yuan Zhang, Jing Chen; Saccadic Suppression on Color and Luminance: Evidence from SSVEPs. Journal of Vision 2021;21(9):1883.

      Download citation file:

      © ARVO (1962-2015); The Authors (2016-present)

  • Supplements

Our eyes make saccadic eye movements several times per second to direct the high-resolution fovea toward objects of interest in the environment. During saccades, visual sensitivity is severely suppressed. Currently, there are inconsistent results on whether saccadic suppression occurs in the parvocellular visual pathway in neurophysiological and psychophysical studies. We recorded steady-state visually evoked potentials (SSVEPs) induced by flickering background stimuli (flickering rate = 7.5 Hz) during the execution of saccades (Chen, Valsecchi & Gegenfurtner, 2019, Journal of Neurophysiology). The stimuli were either color-defined (isoluminant) or luminance-defined. Across two experiments, we found reduced SSVEP responses at the time of saccades compared to fixation periods before saccades. More importantly, the reduction in SSVEPs was similar for color-defined and luminance-defined stimuli (Experiment 1: t(13)=-0.64, p=0.53, BF01=3.10; Experiment 2: t(10)=0.46, p=0.66, BF01=3.07 ). In Experiment 2, we also measured the perceptual performance by asking the observer to discriminate a change of contrast in the stimuli. The change was fixed at a level that gave 82% accuracy during stable fixation measured in a pre-test. At the time of saccades, the accuracy dropped to 78.8% and 69.9% for color-defined and luminance-defined stimuli, respectively. The reduction in perceptual performance was more pronounced for luminance than color, t(10)=-2.47, p=0.03. Therefore, saccades likely suppress both the magnocellular and parvocellular pathways similarly up to the early visual cortex (see also in Kleiser et al., 2004; Sylvester et al., 2005). Saccades, however, seem to affect their subsequent processes differently, which may give rise to different perceptual suppressions on color and luminance.


This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.