Speech and Hearing Science Commons^™

The Test-Retest Reliability Of Binaural-Processing Tasks At Home Versus A Clinical Environment, Logan Grace Faust

Dissertations, 2014-2019

Objective: Investigate the reliability of a custom-designed, portable, stereo-hearing testing system (as in the Ganev, 2017, Au.D. dissertation) when subjects self-administer two different stereo-hearing tasks at home. Results obtained under known and supervised conditions at a university clinic or lab versus unknown conditions at the participants’ homes were compared. Intra-subject comparison, and inter-subject trends, discerned the reliability of patient setup and self-administration of the two tasks.
Design: Ten subjects were evenly split among two conditions: five subjects each setup and self-administered the tasks first at home and then received direction in the clinic, and five received direction and did the …

Binaural Listening In Young And Middle-Aged Adults: Interaural Phase Differences And Speech-In-Noise Measures, Caitlin Cotter

Dissertations, 2014-2019

Difficulty understanding speech in the presence of noise is a common complaint of middle-aged and older adults with and without hearing loss. There is an incomplete picture of what contributes to difficulties understanding speech-in-noise in adults who have normal audiograms. As humans we listen binaurally, so declines in binaural processing may contribute to speech-in-noise difficulties. We examined the effects of age on the upper frequency limit of interaural phase difference (IPD) detection and IPD detection at fixed frequencies. We also examined a speech-in-noise measure of spatial separation across young and middle-aged, normal-hearing individuals.

Participants were young (n=12) and middle-aged (n=8) …