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Published VersionCC BY V4.0, Open Access
Journal article
Monocular and Binocular Contributions to Oculomotor Plasticity
Scientific Reports, Vol.6, pp.1-7
2016
PMCID: PMC4989160
PMID: 27535336
Abstract
Most eye movements in the real-world redirect the foveae to objects at a new depth and thus require the co-ordination of monocular saccade amplitudes and binocular vergence eye movements. Additionally to maintain the accuracy of these oculomotor control processes across the lifespan, ongoing calibration is required to compensate for errors in foveal landing positions. Such oculomotor plasticity has generally been studied under conditions in which both eyes receive a common error signal, which cannot resolve the long-standing debate regarding whether both eyes are innervated by a common cortical signal or by a separate signal for each eye. Here we examine oculomotor plasticity when error signals are independently manipulated in each eye, which can occur naturally owing to aging changes in each eye’s orbit and extra-ocular muscles, or in oculomotor dysfunctions. We find that both rapid saccades and slow vergence eye movements are continuously recalibrated independently of one another and corrections can occur in opposite directions in each eye. Whereas existing models assume a single cortical representation of space employed for the control of both eyes, our findings provide evidence for independent monoculomotor and binoculomotor plasticities and dissociable spatial mapping for each eye.
Details
- Title
- Monocular and Binocular Contributions to Oculomotor Plasticity
- Authors
- Guido Maiello (Corresponding Author) - University College LondonWilliam J. Harrison (Author) - Northeastern UniversityPeter J. Bex (Author) - Northeastern University
- Publication details
- Scientific Reports, Vol.6, pp.1-7
- Publisher
- Nature Publishing Group
- Date published
- 2016
- DOI
- 10.1038/srep31861
- ISSN
- 2045-2322
- PMID
- 27535336; PMC4989160
- Copyright note
- © The Author(s) 2016. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
- Grant note
- This research was supported by National Institutes of Health grant R01EY021553. Author WJH was supported by a CJ Martin Fellowship from the National Health and Medical Research Council of Australia.
- Organisation Unit
- School of Health - Psychology
- Language
- English
- Record Identifier
- 99995993702621
- Output Type
- Journal article
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