| Optimizing gaze control in three dimensions. | |
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MedLine Citation:
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PMID: 9721104 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Horizontal and vertical movements of the human eye bring new objects to the center of the visual field, but torsional movements rotate the visual world about its center. Ocular torsion stays near zero during head-fixed gaze shifts, and eye movements to visual targets are thought to be driven by purely horizontal and vertical commands. Here, analysis of eye-head gaze shifts revealed that gaze commands were three-dimensional, with a separate neural control system for torsion. Active torsion optimized gaze control as no two-dimensional system could have, stabilizing the retinal image as quickly as possible when it would otherwise have spun around the fixation point. |
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Authors:
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D Tweed; T Haslwanter; M Fetter |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Science (New York, N.Y.) Volume: 281 ISSN: 0036-8075 ISO Abbreviation: Science Publication Date: 1998 Aug |
Date Detail:
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Created Date: 1998-09-09 Completed Date: 1998-09-09 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0404511 Medline TA: Science Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1363-6 Citation Subset: IM; S |
Affiliation:
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Department of Physiology, University of Western Ontario, London, Canada. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Computer Simulation Eye Movements / physiology* Feedback Fixation, Ocular / physiology* Head Movements / physiology* Humans Models, Biological Oculomotor Muscles / physiology Vision, Ocular / physiology* |
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