Document Detail


Physiology of the semicircular canals after surgical plugging.
MedLine Citation:
PMID:  11710469     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Inactivation of individual semicircular canals by surgical occlusion (plugging) of the slender duct has been used in basic studies to elucidate the role of individual canal inputs to vestibular-mediated control systems and in clinical applications to treat certain vestibular disorders. The procedure has been shown to be highly effective in blocking sensitivity of individual canals, at least for moderate angular motion stimuli. Effectiveness does not extend to stimuli involving high accelerations where a residual response persists even after complete occlusion of the duct. The residual can be quite large at high-stimulus frequencies where sensitivity to angular motion approaches that of patent canals. The overall physiological effect of canal plugging is reported here in terms of the frequency-dependent attenuation in gain and phase shift of primary afferents. Plug-canal responses are quantitatively described in terms of biomechanics of the deformable labyrinth.
Authors:
R D Rabbitt; R Boyle; S M Highstein
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Annals of the New York Academy of Sciences     Volume:  942     ISSN:  0077-8923     ISO Abbreviation:  Ann. N. Y. Acad. Sci.     Publication Date:  2001 Oct 
Date Detail:
Created Date:  2001-11-16     Completed Date:  2001-12-07     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  7506858     Medline TA:  Ann N Y Acad Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  274-86     Citation Subset:  IM; S    
Affiliation:
Department of Bioengineering, University of Utah, Salt Lake City 84112, USA. r.rabbitt@utah.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Biomechanics
Humans
Motion
Saimiri
Semicircular Canals / physiology*,  surgery*
Vestibular Diseases / surgery*
Grant Support
ID/Acronym/Agency:
DC-01837/DC/NIDCD NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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