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Short-Term Modulation of Online Monocular Visuomotor Function.
Gabriela Oancea1, Damian M Manzone1, Luc Tremblay1
1Perceptual Motor Behaviour Laboratory, Centre for Motor Control, Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, Ontario, Canada.
Journal of Motor Behavior
|January 26, 2024
Summary
This study shows that practicing with one eye improves movement correction for that specific eye. Monocular visual-motor pathways demonstrate short-term neuroplasticity, enhancing online movement correction abilities.
Area of Science:
- Neuroscience
- Motor Control
- Human Vision
Background:
- Online movement correction is typically more effective with dominant limbs and eyes.
- Previous research indicates dominant eye vision enhances online movement correction.
- Limited understanding exists regarding short-term neuroplasticity in monocular visual-motor functions.
Purpose of the Study:
- To investigate if monocular visual-motor pathways can adapt through practice for improved online movement correction.
- To determine if short-term neuroplastic changes occur in visuomotor functions based on monocular information.
Main Methods:
- Participants (n=12) performed monocular pointing movements.
- Online movement correction was assessed for imperceptibly displaced targets.
- Training focused exclusively on the eye with smaller correction amplitudes during acquisition.
Main Results:
- Post-training assessment showed significant improvement in delayed retention for the trained (smaller amplitude) eye.
- The untrained eye did not show comparable improvements.
- This suggests targeted practice enhances specific monocular visuomotor pathways.
Conclusions:
- Monocular visuomotor pathways are capable of short-term neuroplastic changes.
- Targeted practice can lead to specific improvements in online movement correction abilities.
- These findings contribute to understanding visual-motor adaptation and plasticity.
