Document Detail

Acoustic reflex patterns according to different intensity and different duration of white noise (WN) stimuli.
MedLine Citation:
PMID:  6880673     Owner:  NLM     Status:  MEDLINE    
The data were gathered by connecting the output from a middle ear impedance meter (Amplaid 702) to the computer and averaging section of the Amplaid MK VI which was also used as an acoustic stimuli generator. The stimuli consisted of white noise bursts having different peak equivalent sound pressures (115, 105, 95, 85 dB SPL) and different durations (from 1000 to 3 msec). The parameters examined were: stapedius muscle contraction latency time; muscle fibre recruitment time, i.e. the interval between the onset of contraction and its maximum; duration of contraction; amplitude of maximum contraction. An evaluation was also made as to the "efficiency" of contraction, expressed as the function of duration and amplitude. The authors discuss the different patterns of "efficiency" curve achieved at various intensity levels by stimuli of different duration.
G Rossi; P Solero
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta oto-laryngologica     Volume:  95     ISSN:  0001-6489     ISO Abbreviation:  Acta Otolaryngol.     Publication Date:    1983 May-Jun
Date Detail:
Created Date:  1983-09-20     Completed Date:  1983-09-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370354     Medline TA:  Acta Otolaryngol     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  606-14     Citation Subset:  IM    
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MeSH Terms
Acoustic Stimulation
Ear, Middle / physiology
Muscle Contraction
Reflex, Acoustic*
Time Factors

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