Document Detail


Relaxation dynamics of spontaneous otoacoustic emissions perturbed by external tones. I. Response to pulsed single-tone suppressors.
MedLine Citation:
PMID:  7790649     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The dynamic aspects of the suppression of spontaneous otoacoustic emissions by external tones are evaluated. A Van der Pol oscillator driven by an external tone is used as an interpretive model for data on the pulsed suppression of spontaneous emissions obtained from six female subjects. Typical results for both the onset of, and recovery from suppression yield 1/r1 (where -r1 is the negative linear component of the damping function) in the range of 2-25 ms. In accordance with the predictions of the model, (a) the relaxation time for the onset of suppression increases with the amount of suppression induced by the external tone, (b) the values of r1 and the amplitudes of the unsuppressed emissions exhibit an inverse correlation, (c) the values inferred for r1 are not significantly dependent on the frequency of the pulsed suppressor tone, and (d) the inferred r1 values are not significantly dependent upon the amount of suppression.
Authors:
W J Murphy; C L Talmadge; A Tubis; G R Long
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  97     ISSN:  0001-4966     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  1995 Jun 
Date Detail:
Created Date:  1995-07-27     Completed Date:  1995-07-27     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  3702-10     Citation Subset:  IM    
Affiliation:
Department of Physics, Purdue University, West Lafayette, Indiana 47907, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Female
Humans
Models, Biological
Otoacoustic Emissions, Spontaneous / physiology*
Relaxation*
Time Factors
Grant Support
ID/Acronym/Agency:
DC 00307/DC/NIDCD NIH HHS

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


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