Related Experiment Video
Updated: Jan 18, 2026
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Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
Published on: August 22, 2025
478
Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing
1Marianne Bernadotte Centrum, Department for Clinical Neuroscience, Karolinska Institutet; St Erik Eye Hospital; tobias.wibble@ki.se.
Journal of Visualized Experiments : Jove
|September 8, 2025
Summary
This study quantifies how visual and vestibular systems integrate during head rotations, revealing robust sensory integration and potential biomarkers for motion processing disorders like concussion.
Area of Science:
- Neuroscience
- Sensory Physiology
- Oculomotor Research
Background:
- Gaze stabilization relies on integrating visual and vestibular sensory information.
- Understanding the relative contributions of these senses is crucial for diagnosing motion processing disorders.
Purpose of the Study:
- To evaluate the impact of visual and vestibular inputs on roll plane rotations.
- To quantify sensory integration and identify oculomotor biomarkers for motion processing deficits.
Main Methods:
- Subjects underwent optokinetic, vestibular, and combined visuovestibular stimulations during roll plane rotations.
- Eye and head movements were precisely tracked using the Chronos Eye-Tracking Device (C-ETD) at 100 Hz.
- Sensory-specific gains were calculated by comparing responses to individual and combined stimuli.
Main Results:
- Demonstrated robust sensory integration between visual and vestibular systems.
- Quantified the relative contributions of visual and vestibular inputs to gaze stabilization.
- Identified potential oculomotor biomarkers for motion processing deficits.
Conclusions:
- The developed protocol effectively evaluates multisensory integration during roll plane rotations.
- This framework can elucidate sensory deficits and identify novel oculomotor biomarkers.
- Previous applications highlight increased visual reliance in concussed patients.
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