Document Detail

The acoustic reflex and temporary threshold shift: temporal characteristics.
MedLine Citation:
PMID:  904317     Owner:  NLM     Status:  MEDLINE    
One ear of each of seven normal-hearing subjects was exposed to a continuous 1000-Hz tone at 110 dB SPL for three minutes. During exposure, a broad-band noise at 100 dB SPL was presented to the contralateral ear. The noise was either continuous or pulsed. Four pulsed conditions employed repetition periods of 360, 180, 90, or 9 msec with a 50% duty cycle. A control condition in which no noise was presented was also included. Temporary threshold shift was measured at selected postexposure times at the frequency one-half octave above the exposure frequency. TTS2 was greatest for the control condition and least for the 360- and 180-msec conditions. Results are discussed in relation to the dynamics of the acoustic reflex, particularly reflex relaxation, reflex adaptation, and reflex temporal summation.
R S Karlovich; H A Osier; H N Gutnick; R G Ivey; K Wolf; S Schwimmer; M L Strennen; J Gerber
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of speech and hearing research     Volume:  20     ISSN:  0022-4685     ISO Abbreviation:  J Speech Hear Res     Publication Date:  1977 Sep 
Date Detail:
Created Date:  1977-11-25     Completed Date:  1977-11-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0376336     Medline TA:  J Speech Hear Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  565-73     Citation Subset:  IM    
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MeSH Terms
Acoustic Stimulation*
Auditory Perception / physiology
Auditory Threshold*
Functional Laterality*
Muscle Contraction
Time Factors

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

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