Document Detail


Short-term vestibulo-ocular adaptation: influence of context.
MedLine Citation:
PMID:  9674516     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
P Kramer; M Shelhamer; D S Zee
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
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:
Created Date:  1998-08-04     Completed Date:  1998-08-04     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  8508176     Medline TA:  Otolaryngol Head Neck Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  60-4     Citation Subset:  IM; S    
Affiliation:
Department of Neurology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA.
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological / 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:
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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