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Related Experiment Videos

Can illusory motion disrupt tracking real motion?

T J Andrews1, A N McCoy

  • 1Department of Neurobiology, Duke University Medical Center, Durham, NC 27710, USA. tim.andrews@physiol.ox.ac.uk

Perception
|January 1, 1997
PubMed
Summary
This summary is machine-generated.

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The perception of motion influences eye movements, even when visual input conflicts with perceived motion. This suggests perceived motion directly impacts optokinetic responses, potentially due to neural conflicts.

Area of Science:

  • Neuroscience
  • Vision Science
  • Perception

Background:

  • Motion perception can be illusory, with rotating stimuli sometimes perceived as moving in the opposite direction.
  • Optokinetic nystagmus (OKN) is an involuntary eye movement reflex that tracks visual motion.

Purpose of the Study:

  • To investigate the influence of perceived motion on optokinetic nystagmus (OKN).
  • To differentiate the roles of retinal versus perceived motion in generating OKN.

Main Methods:

  • Utilized the motion perception illusion (reverse apparent motion) with rotating stripes.
  • Measured optokinetic nystagmus (OKN) responses during the illusion.

Main Results:

  • Optokinetic nystagmus (OKN) was disrupted when subjects perceived the illusory motion reversal.

Related Experiment Videos

  • Subjects failed to track the actual movement when perceived and retinal motion conflicted.

    • Conclusions:

    • Perceived motion directly modulates optokinetic responses, overriding veridical retinal input.
    • Neural conflicts in motion representation may underlie the disruption of OKN during illusory motion perception.