4.5 Article

Evidence for basal distortion-product otoacoustic emission components

Journal

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Volume 127, Issue 5, Pages 2955-2972

Publisher

ACOUSTICAL SOC AMER AMER INST PHYSICS
DOI: 10.1121/1.3353121

Keywords

-

Funding

  1. NIH [DC000613]
  2. Veterans Administration VA/RRD [C449R, C6212L]
  3. NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS [R01DC000613] Funding Source: NIH RePORTER

Ask authors/readers for more resources

Distortion-product otoacoustic emissions (DPOAEs) were measured with traditional DP-grams and level/phase (L/P) maps in rabbits with either normal cochlear function or unique sound-induced cochlear losses that were characterized as either low-frequency or notched configurations. To demonstrate that emission generators distributed basal to the f(2) primary-tone contribute, in general, to DPOAE levels and phases, a high-frequency interference tone (IT) was presented at 1/3 of an octave (oct) above the f2 primary-tone, and DPOAEs were re-measured as augmented DP-grams (ADP-grams) and L/P maps. The vector difference between the control and augmented functions was then computed to derive residual DP-grams (RDP-grams) and L/P maps. The resulting RDP-grams and L/P maps, which described the DPOAEs removed by the IT, supported the notion that basal DPOAE components routinely contribute to the generation of standard measures of DPOAEs. Separate experiments demonstrated that these components could not be attributed to the effects of the 1/3-oct IT on f2, or DPOAEs generated by the addition of a third interfering tone. These basal components can fill in the lesion estimated by the commonly employed DP-gram. Thus, ADP-grams more accurately reveal the pattern of cochlear damage and may eventually lead to an improved DP-gram procedure. [DOI: 10.1121/1.3353121]

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.5
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available