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Monocular Visual Deprivation and Ocular Dominance Plasticity Measurement in the Mouse Primary Visual Cortex
Published on: February 8, 2020
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Monocular and Binocular Contributions to Oculomotor Plasticity
Guido Maiello1,2, William J Harrison2,3,4, Peter J Bex2
1UCL Institute of Ophthalmology, University College London, 11-43 Bath Street, London EC1V 9EL, UK.
Scientific Reports
|August 19, 2016
Summary
Eye movements recalibrate independently for each eye, even with opposite error signals. This research reveals separate spatial mapping for each eye, challenging previous models of oculomotor control.
Area of Science:
- Oculomotor control
- Neuroscience
- Vision science
Background:
- Real-world eye movements require coordinated saccades and vergence for accurate depth perception.
- Oculomotor control needs continuous calibration to maintain accuracy throughout life.
- Previous studies used common error signals, leaving the cortical control debate unresolved.
Purpose of the Study:
- To investigate oculomotor plasticity with independently manipulated error signals in each eye.
- To determine if eye movement recalibration occurs separately for each eye.
- To provide evidence for or against a common cortical signal for both eyes.
Main Methods:
- Independent manipulation of error signals for each eye during oculomotor tasks.
- Examination of saccade and vergence eye movement recalibration.
- Analysis of spatial mapping and plasticity in each eye.
Main Results:
- Both saccades and vergence eye movements recalibrate independently between the eyes.
- Corrections in eye movement calibration can occur in opposite directions for each eye.
- Findings support dissociable spatial mapping for each eye.
Conclusions:
- Oculomotor plasticity is independent for each eye, challenging models of a single cortical representation.
- Evidence suggests separate monoculomotor and binoculomotor plasticities.
- This research clarifies the independent calibration of eye movements in each eye.
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