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Updated: Jun 2, 2026
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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
Published on: March 18, 2019
Integration of visual information for saccade production
Peggy Gerardin1, Valérie Gaveau, Denis Pélisson
1Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292, ImpAct Team, Bron, France. peggy.gerardin@inserm.fr
Human Movement Science
|May 18, 2011
Summary
Corrective saccades (S2) accuracy depends on visual integration duration. The visual environment also influences primary saccade (S1) accuracy, suggesting adaptable gaze control strategies.
Area of Science:
- Neuroscience
- Vision Science
- Oculomotor Research
Background:
- Foveating visual targets involves primary saccades (S1) and corrective saccades (S2).
- The programming of corrective saccades (S2) is debated, with theories focusing on pre-programming versus post-saccadic retinal error.
- Understanding saccadic eye movements is crucial for vision science and understanding neurological control.
Purpose of the Study:
- To investigate the factors influencing corrective saccade (S2) accuracy.
- To determine the role of post-saccadic visual integration duration on S2 accuracy.
- To examine how visual context affects both primary saccade (S1) and corrective saccade (S2) accuracy.
Main Methods:
- Utilized a visually-triggered saccade task with manipulated target position and visibility.
- Employed a double-step paradigm where targets were displaced at S1 onset.
- Conducted experiments in both dark and dimly lit environments with visible backgrounds.
Main Results:
- Corrective saccade (S2) accuracy decreased with shorter target presentation durations.
- The duration of post-saccadic visual integration was identified as the primary determinant of S2 accuracy.
- Visual context modulated primary saccade (S1) accuracy, particularly in subjects with highly hypometric S1.
Conclusions:
- Post-saccadic visual integration duration is critical for accurate corrective saccades.
- The saccadic system adapts to environmental visual properties to maintain gaze accuracy.
- Both visual integration time and environmental context play significant roles in saccadic eye movement control.
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