Toward optimizing the clinical utility of distortion product otoacoustic emission measurements
作者:
Lisa Stover,
Michael P. Gorga,
Stephen T. Neely,
Danielle Montoya,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1996)
卷期:
Volume 100,
issue 2
页码: 956-967
ISSN:0001-4966
年代: 1996
DOI:10.1121/1.416207
出版商: Acoustical Society of America
关键词: ACOUSTIC EMISSION TESTING;AUDITORY ORGANS;OPTIMIZATION;STIMULI
数据来源: AIP
摘要:
This study examined the effect of primary stimulus level on the ability of distortion product otoacoustic emission (DPOAE) measurements to separate normal‐hearing from hearing‐impaired ears. Complete I/O functions were obtained for ninef2frequencies on 210 people approximately evenly divided between normal hearing and hearing impaired. Clinical decision theory was used to assess both DPOAE amplitudes and DPOAE threshold as diagnostic indicators of hearing status. Moderate level primary stimuli elicited responses that separated normal from impaired better than either lower level or higher level stimuli. The two populations were differentiated for all frequencies above 500 Hz by DPOAE amplitude, given primary levels,L1andL2, of 65 and 55 dB SPL. DPOAE threshold performed equally well, but threshold ambiguity in noise and longer testing times make it a less suitable DPOAE measure to use diagnostically.
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