Document Detail

The acoustic cricothyroid response in the rat.
MedLine Citation:
PMID:  6677639     Owner:  NLM     Status:  MEDLINE    
Contraction of the cricothyroid muscle (CTM) in the bat is known to raise vocal pitch. An electrode was placed on the CTM of 12 adult lightly-anesthetized rats and electromyograms obtained in response to 5-sec pure tones from 2-80 kc/s at 100 db SPL. Response patterns (rate-of-firing by frequency) were obtained for each rat, being greatest at frequencies below 15 kc/s. This is not the region of greatest audibility, which in the rat is thought to be 30-40 kc/s. Response latencies were determined to be 830 msec at each rat's best frequency. Evidently in rats, as in bats, the CTM is acoustically responsive, but its precise ethological role in controlling vocal pitch is not as yet understood.
A Yonovitz; J Lozar
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of auditory research     Volume:  23     ISSN:  0021-9177     ISO Abbreviation:  J Aud Res     Publication Date:  1983 Jan 
Date Detail:
Created Date:  1984-07-27     Completed Date:  1984-07-27     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0014024     Medline TA:  J Aud Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  63-71     Citation Subset:  IM    
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MeSH Terms
Acoustic Stimulation
Evoked Potentials, Auditory*
Laryngeal Muscles / physiology*
Muscle Contraction
Muscles / physiology*
Rats / physiology*

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

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