Centrifugal bias for second-order but not first-order motion

J Opt Soc Am A Opt Image Sci Vis. 2001 Sep;18(9):2179-89. doi: 10.1364/josaa.18.002179.

Abstract

Limited-lifetime Gabor stimuli were used to assess both first- and second-order motion in peripheral vision. Both first- and second-order motion mechanisms were present at a 20-deg eccentricity. Second-order motion, unlike first-order, exhibits a bias for centrifugal motion, suggesting a role for the second-order mechanism in optic flow processing.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anisotropy
  • Contrast Sensitivity* / physiology*
  • Humans
  • Light*
  • Linear Models
  • Motion Perception / physiology*
  • Nonlinear Dynamics
  • Photic Stimulation / methods
  • Psychometrics / methods
  • Stochastic Processes
  • Visual Fields