The Influence of Long-Term Sound Conditioning on the Physiology of Outer Hair Cells
- VernacularTitle:噪声习服对耳蜗外毛细胞生理特性的影响
- Author:
Jianhua PENG
;
Jianfu CHEN
;
Zhiwu HUANG
- Publication Type:Journal Article
- Keywords:
Sound conditioning;
Distortion product otoacoustic emission;
Outer hair cells;
Noise induced hearing loss
- From:
Journal of Audiology and Speech Pathology
2004;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the influence of long-term sound conditioning on the physiology of outer hair cells.Methods Twenty healthy guinea pigs were exposed to a broadband noise for 14 days consecutively at the level 90 dB(A),8 h/day.The DP-gram and input/output(I/O)function(1~8 kHz)were measured at pre-conditioning,fourteen days conditioning,seven days post-conditioning and fourteen days post-conditioning,respectively.Results The results of DP-gram measurements demonstrated that long-term sound conditioning could enhance the DPOAE amplitudes within low frequencies(1~3 kHz,especially 5.0 dB at 2 kHz and 7.5 dB at 3 kHz,P
