Characterizing the effect of varying stimulation parameters of DPOAEs recorded in normal and impaired ears

This is a completed project.

Description

Distortion product otoacoustic emissions (DPOAEs) are widely used to screen for hearing loss. While the accuracy with which DPOAEs identify auditory status is good, errors in diagnosis are made. In particular, ears with mild hearing losses are frequently misidentified as having normal hearing.

This project was designed to complete a broad exploration of the stimulus parametric space in ears with mild-to-moderate hearing loss, in order to more fully characterize the influence of DPOAE stimulus parameters in impaired ears. In a second study, DPOAE levels recorded in impaired ears were compared to those recorded in normal ears under identical stimulus conditions. These results were used to identify the stimulus conditions producing the maximum separation between responses recorded from normal and impaired ears.

Project Administration

Tiffany Johnson, principal investigator

Project Contact

Tiffany A. Johnson, Ph.D.
Assistant Professor
Department of Speech-Language-Hearing: Sciences and Disorders
The University of Kansas
3001 Dole Human Development Center
1000 Sunnyside Avenue
Lawrence, KS 66045-7555
tiffany-johnson@ku.edu
(785)864-4467
(785)864-3834 (lab)
fax: (785)864-3974

This is a project of:

Speech-Language-Hearing: Sciences & Disorders (SPLH)

Funded by

American Academy of Audiology Foundation (AAAF)

Send corrections/comments/questions to lifespan@ku.edu