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A DPOAE assessment of outer hair cell integrity in ears with age-related hearing loss
被引:19
|作者:
Ueberfuhr, Margarete A.
[1
]
Fehlberg, Hannah
[2
]
Goodman, Shawn S.
[3
]
Withnell, Robert H.
[4
]
机构:
[1] Univ Munich, Grad Sch Syst Neurosci, Munich, Germany
[2] Univ Minnesota, Med Ctr, Audiol & Aural Rehabil, Minneapolis, MN 55455 USA
[3] Univ Iowa, Dept Commun Sci & Disorders, Iowa City, IA 52242 USA
[4] Indiana Univ, Dept Speech & Hearing Sci, Bloomington, IN 47405 USA
来源:
关键词:
Otoacoustic emission;
Presbycusis;
Model;
DISTORTION-PRODUCT;
OTOACOUSTIC EMISSIONS;
AUDIOMETRIC SHAPE;
COCHLEAR;
MODEL;
PRESBYCUSIS;
DEGENERATION;
ADDITIVITY;
REDUCTION;
PRESTIN;
D O I:
10.1016/j.heares.2015.11.006
中图分类号:
R36 [病理学];
R76 [耳鼻咽喉科学];
学科分类号:
100104 ;
100213 ;
摘要:
Distortion product otoacoustic emissions (DPOAEs) were used to assess outer hair cell (OHC) integrity in human ears with age-related hearing loss. Sound pressure measurements were made in the ear canal over the stimulus range 40-90 dB SPL (L-2), with L-1 = 0A5*L-2 + 44 with F-2 = 2 and 3 or 4 kHz. Model generated DPOAE I/O functions were fit to DPOAE data to quantify the contribution of loss of nonlinearity (OHC loss) to the hearing loss. Results suggest OHC loss as a contributing cause of age-related hearing, regardless of audiogram configuration. It seems likely that OHC and stria] pathology co-exist in ears with AHL. (C) 2015 Elsevier B.V. All rights reserved.
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页码:137 / 150
页数:14
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