Document Detail

Age-related changes in transiently evoked otoacoustic emissions and distortion product otoacoustic emissions in normal-hearing ears.
MedLine Citation:
PMID:  9673723     Owner:  NLM     Status:  MEDLINE    
Age-related changes in transiently evoked otoacoustic emissions (TEOAEs) and distortion product otoacoustic emissions (DPOAEs) were evaluated in normal-hearing ears. The TEOAE was elicited by a non-linear click with a stimulus level of 82 +/- 1 dB SPL using ILO 88 in 251 normal-hearing ears. The DPOAE at the frequency of 2f1-f2 was measured with stimulus levels of 70 dB SPL (f1) and 60 dB SPL (f2) and with an f2/f1 ratio of 1.2 using ILO 92 in 64 normal-hearing ears. The results obtained showed that TEOAE and DPOAE were decreased with increasing age. Moreover, the same pattern of gradual decrease in TEOAE and in DPOAE suggests the possibility of the same generating mechanism associated with outer hair cells (OHCs).
Y Satoh; J Kanzaki; T O-Uchi; S Yoshihara
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Auris, nasus, larynx     Volume:  25     ISSN:  0385-8146     ISO Abbreviation:  Auris Nasus Larynx     Publication Date:  1998 May 
Date Detail:
Created Date:  1998-10-14     Completed Date:  1998-10-14     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7708170     Medline TA:  Auris Nasus Larynx     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  121-30     Citation Subset:  IM    
Department of Otolaryngology, Shizuoka Red Cross Hospital, Japan.
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MeSH Terms
Acoustic Stimulation
Aging / physiology*
Auditory Threshold / physiology
Hair Cells, Auditory, Outer / physiology
Hearing / physiology*
Middle Aged
Otoacoustic Emissions, Spontaneous / physiology*
Reference Values

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