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Related Experiment Video

Updated: Jul 15, 2026

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
07:24

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

Published on: August 22, 2025

Object-based anisotropic mislocalization by retinotopic motion signals.

Katsumi Watanabe1, Kenji Yokoi

  • 1Research Center for Advanced Science and Technology, The University of Tokyo, Meguro-ku, Tokyo, Japan. kw@fennel.rcast.u-tokyo.ac.jp

Vision Research
|April 20, 2007
PubMed
Summary

Retinotopic motion signals, not object motion, cause visual mislocalization. Eye movements create anisotropic shifts in perceived object position without altering shape, demonstrating object-based mislocalization.

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Area of Science:

  • Visual perception
  • Cognitive neuroscience
  • Psychophysics

Background:

  • Visual stimuli motion influences perceived object position.
  • Previous research showed object-based anisotropies in the flash-lag effect.
  • The role of retinotopic versus object motion signals was unclear.

Purpose of the Study:

  • To investigate whether anisotropic mislocalization depends on retinotopic or object motion signals.
  • To differentiate the contributions of retinal image motion versus object motion to perceived position shifts.
  • To determine if motion signals distort perceived object position after shape representation.

Main Methods:

  • Manipulating retinal image motion using smooth pursuit eye movements.
  • Inducing motion in the retinal image via voluntary eye movements.

Related Experiment Videos

Last Updated: Jul 15, 2026

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
07:24

Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

Published on: August 22, 2025

  • Comparing mislocalization patterns under different motion conditions without significant shape distortion.

    • Main Results:

    • Anisotropic mislocalization was absent when the retinal image was stabilized during smooth pursuit.
    • Anisotropic mislocalization was present when the retinal image moved due to eye movements.
    • The magnitude of mislocalization was comparable to previous findings, with minimal shape distortion.

    Conclusions:

    • Retinotopic motion signals, generated by eye movements, are responsible for object-based mislocalization.
    • Object motion signals do not drive this anisotropic positional distortion.
    • Perceived visual object positions are distorted by retinotopic motion signals after shape representations are formed.