Distortion product otoacoustic emission input/output functions in normal-hearing and hearing-impaired human ears

2001 ◽  
Vol 110 (6) ◽  
pp. 3119-3131 ◽  
Author(s):  
Patricia A. Dorn ◽  
Dawn Konrad-Martin ◽  
Stephen T. Neely ◽  
Douglas H. Keefe ◽  
Emily Cyr ◽  
...  
2014 ◽  
Vol 25 (08) ◽  
pp. 746-759 ◽  
Author(s):  
Shaum P. Bhagat

Background: Basilar membrane input/output (I/O) functions in mammalian animal models are characterized by linear and compressed segments when measured near the location corresponding to the characteristic frequency. A method of studying basilar membrane compression indirectly in humans involves measuring distortion-product otoacoustic emission (DPOAE) I/O functions. Previous research has linked compression estimates from behavioral growth-of-masking functions to hearing thresholds. Purpose: The aim of this study was to compare compression estimates from DPOAE I/O functions and hearing thresholds at 1 and 2 kHz. Research Design: A prospective correlational research design was performed. The relationship between DPOAE I/O function compression estimates and hearing thresholds was evaluated with Pearson product-moment correlations. Study Sample: Normal-hearing adults (n = 16) aged 22–42 yr were recruited. Data Collection and Analysis: DPOAE I/O functions (L 2 = 45–70 dB SPL) and two-interval forced-choice hearing thresholds were measured in normal-hearing adults. A three-segment linear regression model applied to DPOAE I/O functions supplied estimates of compression thresholds, defined as breakpoints between linear and compressed segments and the slopes of the compressed segments. Pearson product-moment correlations between DPOAE compression estimates and hearing thresholds were evaluated. Results: A high correlation between DPOAE compression thresholds and hearing thresholds was observed at 2 kHz, but not at 1 kHz. Compression slopes also correlated highly with hearing thresholds only at 2 kHz. Conclusions: The derivation of cochlear compression estimates from DPOAE I/O functions provides a means to characterize basilar membrane mechanics in humans and elucidates the role of compression in tone detection in the 1–2 kHz frequency range.


2003 ◽  
Vol 114 (1) ◽  
pp. 263-278 ◽  
Author(s):  
Michael P. Gorga ◽  
Stephen T. Neely ◽  
Darcia M. Dierking ◽  
Patricia A. Dorn ◽  
Brenda M. Hoover ◽  
...  

2007 ◽  
Vol 28 (4) ◽  
pp. 303-318 ◽  
Author(s):  
Grazyna Bartnik ◽  
Monica Hawley ◽  
Marek Rogowski ◽  
Danuta Raj-Koziak ◽  
Anna Fabijanska ◽  
...  

2014 ◽  
Vol 135 (1) ◽  
pp. 287-299 ◽  
Author(s):  
Gayla L. Poling ◽  
Jonathan H. Siegel ◽  
Jungmee Lee ◽  
Jungwha Lee ◽  
Sumitrajit Dhar

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