| Short-term vestibulo-ocular adaptation: influence of context. | |
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MedLine Citation:
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PMID: 9674516 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A number of mechanisms and strategies are used to help an individual compensate for loss of labyrinthine function. One important example is the ability to produce a preplanned motor response that anticipates the motion of the head and so compensates for it. Closely tied to this phenomenon is the gating, in or out, of a learned response on the basis of the context in which it must occur. This issue is particularly relevant to designing programs of physical therapy that optimize performance for natural behavior. Here we discuss a model of short-term vestibulo-ocular adaptation-adjustment of vestibulo-ocular phase (timing)-and how it can be used to study context-dependent vestibulo-ocular learning. We will show how vestibulo-ocular phase can be adjusted by selectively altering the common velocity-to-position ocular motor neural integrator for one type of eye movement (vestibular) and not for another (saccades), or for one type of head movement (sinusoidal) and not for another (step). These results are another example of the remarkable flexibility of the vestibulo-ocular adaptive mechanism and further show that the fundamental process of integration for eye movements can be modified according to the pattern of afferent information. |
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Authors:
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P Kramer; M Shelhamer; D S Zee |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery Volume: 119 ISSN: 0194-5998 ISO Abbreviation: Otolaryngol Head Neck Surg Publication Date: 1998 Jul |
Date Detail:
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Created Date: 1998-08-04 Completed Date: 1998-08-04 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8508176 Medline TA: Otolaryngol Head Neck Surg Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 60-4 Citation Subset: IM; S |
Affiliation:
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Department of Neurology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Physiological
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physiology* Afferent Pathways / physiopathology Cues* Ear, Inner / physiopathology* Eye Movements / physiology* Humans Learning / physiology* Motor Skills / physiology* Nerve Net / physiology Physical Therapy Modalities / methods Reflex, Vestibulo-Ocular / physiology* Vestibular Function Tests |
| Grant Support | |
ID/Acronym/Agency:
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1 K08 DC 00111-01/DC/NIDCD NIH HHS; 2 P60 DC 00979-06/DC/NIDCD NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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