Document Detail

Intracochlear sound pressure measurements in guinea pigs.
MedLine Citation:
PMID:  7410227     Owner:  NLM     Status:  MEDLINE    
The intracochlear sound pressure in guinea pigs was measured in the scala vestibuli of the first, second and third turns as well as in the scala tympani of the first and second turns. The acoustic stimuli were pure tones delivered over the frequency range 30--20 000 Hz at sound levels ranging from 60 to 100 dB. The results achieved show the sound pressure in scala vestibuli to be practically in phase in the first three turns. In scala tympani the pressure varies within wide limits when passing from the first to the second turn, but it is equal to the pressure in scala vestibuli at frequencies in excess of the best frequency of the point considered. The difference in instantaneous pressure acting on the basilar membrane exhibits the characteristics of a traveling wave. This pressure difference corresponds to the displacement of the basilar membrane evaluated from recordings of the microphonic potential.
A Dancer; R Franke
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Hearing research     Volume:  2     ISSN:  0378-5955     ISO Abbreviation:  Hear. Res.     Publication Date:  1980 Jun 
Date Detail:
Created Date:  1980-11-25     Completed Date:  1980-11-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7900445     Medline TA:  Hear Res     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  191-205     Citation Subset:  IM    
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MeSH Terms
Basilar Membrane / physiology
Cochlea / physiology*
Cochlear Microphonic Potentials
Scala Tympani / physiology
Stapes / physiology

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

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