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School of Speech, Language, and Hearing Sciences - SDSU

School of Speech, Language, and Hearing Sciences - SDSU

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You are here: Home / Research Labs, Centers, & Clinics / Audiology & Hearing Sciences Laboratories

Audiology & Hearing Sciences Laboratories


Auditory Physiology and Psychoacoustics Lab

  • Laura Dreisbach, Director

The Auditory Physiology and Psychoacoustics Laboratory is located in the SLH Building on the main campus. It serves as the primary teaching and research laboratory for Dr. Laura Dreisbach. The research focus of the lab is to characterize otoacoustic emissions, sounds generated by the healthy ear, using high-frequency stimuli. By characterizing high-frequency otoacoustic emissions we are hoping to develop an objective test to monitor high-frequency hearing in humans during medical treatments that are known to damage hearing. Specifically, we are studying distortion-product otoacoustic emissions (DPOAEs) and stimulus frequency otoacoustic emissions (SFOAEs). Additionally, we want to develop an objective test of frequency selectivity. Frequency selectivity represents a basic mechanism of inner ear processing and is thought to be an important factor in speech understanding. There may be a link between frequency selectivity measured behaviorally (psychoacoustically) and inner ear tuning measured with emissions. Using emissions and behavioral measures to examine frequency selectivity will help us determine if we can develop an objective test of frequency selectivity to be used in hearing clinics. This innovative objective test of frequency selectivity may aid in the determination of “good” hearing aid candidates.


Auditory Research Lab

  • Carol Mackersie, Director

The Auditory Research Lab is located in the Speech, Language, and Hearing Sciences building. It serves as the primary research and teaching laboratory for Dr. Mackersie. The lab is equipped with Tucker-Davis hardware and software packages for psychoacoustic and speech perception testing, an audiometer, a sound-field system for evaluating perception in the presence of multiple noise sources and equipment for electroacoustic and in-situ analyses of amplification (Fonix, Verifit and KEMAR). The lab is also equipped with additional hardware for digital recording and software for testing, signal processing, speech analysis, and statistical analysis. Lab activities encompass several research areas pertaining to persons with permanent hearing loss: 1) speech perception abilities in complex listening environments 2) hearing amplification including self-adjustment of hearing aids and sound tolerance and 3) hearing-loss related stress.


Enabling Auditory Rehabilitation Lab (EAR Lab)

  • Jill Preminger, Director

We use quantitative and qualitative methods to understand the auditory rehabilitation experience of adults with hearing impairment and their family members, to develop methods to promote the uptake of audiology services, and to measure the outcomes of these services. Current projects include the development and evaluation of the iManage (my hearing) program, a decision coaching guide to promote audiology care, an exploration of the hearing screening experience, and the development of scale to measure hearing loss related social support.


Recreational Noise Exposure and Auditory Function Lab

  • Peter Torre, III, Director

The Recreational Noise Exposure and Auditory Function Lab is located in the SLHS building on the SDSU main campus. The primary research focus within the lab is to evaluate how recreational noise exposure, specifically personal music system use with earphones, affects the inner ear in young adults. One goal of the lab is to determine if young adults are more at risk for earlier onset hearing loss because of recreational noise exposure. Responses from the inner ear are measured using distortion product otoacoustic emissions (DPOAEs) and a sensitive probe microphone system allows for the measurement of the specific listening level, in decibels, within the ear canal. By combining these data, an examination of how preferred listening levels affects DPOAEs and if young adults are listening to music at dangerous levels.

 

 

  • Research Labs, Centers, & Clinics
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San Diego State University

SDSU School of Speech, Language, and Hearing Sciences

SLHS Building room 221
5500 Campanile Drive
San Diego, CA 92182-1518
(see map)

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