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Related Experiment Videos

Lateral information transfer across saccadic eye movements

M Jüttner1, R Röhler

  • 1Institute of Medical Optics, University of Munich, Germany.

Perception & Psychophysics
|February 1, 1993
PubMed
Summary
This summary is machine-generated.

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Visual stability is maintained during eye movements. Presaccadic signals selectively elevate postsaccadic visibility thresholds when orientations differ, impacting visual perception across saccades.

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Visual Perception

Background:

  • The brain maintains a stable visual perception despite eye movements like saccades.
  • Understanding information transfer across saccades is crucial for explaining visual stability.

Purpose of the Study:

  • To investigate how presaccadic signals influence postsaccadic visual signal visibility.
  • To determine if signal orientation affects this influence.

Main Methods:

  • Experiments used Landolt rings of varying orientations presented before and after saccadic eye movements.
  • Visibility thresholds for postsaccadic foveal test signals were measured.

Main Results:

  • Test signal thresholds were elevated by 20-25% when presaccadic and postsaccadic signal orientations differed.

Related Experiment Videos

  • No threshold elevation occurred when signal orientations were identical.
  • This selective threshold elevation is distinct from saccadic suppression but linked to saccade execution.

    • Conclusions:

    • Presaccadic visual information selectively modulates postsaccadic perception.
    • This mechanism contributes to maintaining visual stability during saccadic eye movements.