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Related Experiment Videos

Eye movement dynamics are a key factor for intra-saccadic motion perception.

Gaëlle Nicolas1, Emmanuelle Kristensen2, Michel Dojat3,4

  • 1Université de Lorraine, 2LPN, Chaire Behaviour, 54000, Nancy, France.

Scientific Reports
|March 3, 2026
PubMed
Summary

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This summary is machine-generated.

This study reveals that the magnocellular pathway and specific temporal frequencies are crucial for seeing motion during eye movements (saccades). Eye movement speed and stability directly influence this visual processing.

Area of Science:

  • Neuroscience
  • Visual Perception
  • Oculomotor Function

Background:

  • Intra-saccadic motion perception remains poorly understood.
  • The roles of specific visual and oculomotor brain regions in this process require further investigation.

Purpose of the Study:

  • To explore the involvement of visual (V1-V3, hV4, MT/V5) and oculomotor (IPS, FEF) regions in intra-saccadic motion perception.
  • To determine how activity in these regions correlates with retinal temporal frequency.
  • To investigate the link between oculomotor kinematics and intra-saccadic visual processing.

Main Methods:

  • Multimodal neuroimaging techniques were employed.
  • Analysis focused on extended visual and oculomotor networks.
  • Individual oculomotor kinematics (saccade peak velocity, post-saccadic oscillations) were correlated with perceptual data.
Keywords:
Active visionHuman visionNeuroimagingRetinal frequencySaccadic eye movement

Related Experiment Videos

Main Results:

  • Confirmed the essential role of the magnocellular pathway in intra-saccadic motion perception.
  • Demonstrated that retinal temporal frequency mediates this perception.
  • Found that perceptual efficacy peaks at a specific temporal frequency bandwidth, matching magnocellular motion detector tuning.
  • Showed a tight coupling between perceptual phenomena and individual saccade dynamics.

Conclusions:

  • Retinal temporal frequency is a key modulator of intra-saccadic motion perception via the magnocellular pathway.
  • Oculomotor kinematics significantly influence visual processing during saccades.
  • Eye movement dynamics are integral to intra-saccadic visual processing.