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Updated: Dec 13, 2025

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
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Object identity determines trans-saccadic integration.

Leila Drissi-Daoudi1, Haluk Ögmen1, Michael H Herzog1

  • 1,.

Journal of Vision
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Summary
This summary is machine-generated.

Perception remains stable despite rapid eye movements (saccades). Visual information integrates across saccades based on object identity, not just the retinal image, ensuring a continuous visual experience.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Visual Perception

Background:

  • Humans experience a stable visual world despite frequent rapid eye movements (saccades).
  • Understanding how visual information is integrated across saccades is crucial for explaining visual stability.

Purpose of the Study:

  • To investigate the mechanisms of trans-saccadic visual information integration.
  • To determine whether integration relies on retinal image properties or spatiotopic object identity.

Main Methods:

  • Utilized the sequential metacontrast paradigm (SQM) with expanding line streams.
  • Instructed observers to perform saccades during SQM presentation.
  • Manipulated retinal image disruption with and without saccades.

Main Results:

  • Mandatory integration of spatial offsets occurred across saccades, despite disrupted retinal motion.
  • No integration was observed when similar retinal image disruption occurred without saccades.
  • Trans-saccadic integration was preserved when object identity was maintained.

Conclusions:

  • Visual perception across saccades is governed by object identity in spatiotopic coordinates.
  • Trans-saccadic integration is not solely dependent on the retinal image.
  • This suggests a higher-level processing mechanism for maintaining visual stability.