Simulating Speech Perception in Bilateral Cochlear Implant Users with Asymmetric Input

Simple item page
dc.contributor.advisorGoupell, Matthew
dc.contributor.advisorJaekel, Brittany
dc.contributor.advisorMilvae, Kristina
dc.contributor.authorZukerman, Danielle
dc.date.accessioned2020-04-27T15:20:48Z
dc.date.available2020-04-27T15:20:48Z
dc.date.issued2020
dc.description.abstractUnderstanding speech in noise is difficult for cochlear-implant (CI) users. One potential reason for this difficulty is asymmetrical hearing between the two ears; that is, when one ear can process sound more effectively and clearly than the other ear. Such asymmetry may impair some CI users’ ability to fuse speech signals from both ears into a single stream. One way to test this is with an alternating speech paradigm, which is an experimental simplification of speech moving from talker to talker in a rapid conversation between a group of people. Previous studies have shown CI users perform 40% worse on alternating speech listening than normal-hearing individuals. The present study aims to examine if reduced alternating speech perception is the result of asymmetrical hearing, which could cause a listener to only use their better ear when listening to alternating speech, and to miss out on much of the signal that is present in the poorer ear. Six young normal-hearing participants were tested using a CI simulation with varying levels of signal degradation to simulate both asymmetrical and symmetrical hearing. The hypothesis was that participants will show selective attention to the ear with the clearer, less degraded signal in asymmetrical hearing conditions, and will overall perform worse in this condition compared to the symmetrical hearing condition. The results comparing the “better ear” and the asymmetric condition suggest that there is no evidence of selective attention; therefore we can reject the hypothesis. Future directions include increasing asymmetry across ears by simulating more drastic degradation in the “poorer ear”. Speech perception in noise is one of the most common issues CI users face, and quantifying the contributions of asymmetrical hearing to this problem is important for resolving this issue.en_US
dc.description.sponsorshipMaryland Summer Scholars Programen_US
dc.identifierhttps://doi.org/10.13016/sqqr-yhco
dc.identifier.urihttp://hdl.handle.net/1903/25927
dc.relation.isAvailableAtMaryland Center for Undergraduate Research
dc.relation.isAvailableAtDigital Repository at the University of Maryland
dc.relation.isAvailableAtUniversity of Maryland (College Park, Md)
dc.subjectHearing and Speech Sciencesen_US
dc.subjectBSOSen_US
dc.subjectZukermanen_US
dc.subjectMaryland Summer Scholarsen_US
dc.subjectBilateral Cochlear Implantsen_US
dc.titleSimulating Speech Perception in Bilateral Cochlear Implant Users with Asymmetric Inputen_US
dc.typePresentationen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
DZukerman_UGRDposter.pdf
Size:
175.88 KB
Format:
Adobe Portable Document Format
Description:
Simulating Speech Perception in Bilateral Cochlear Implant Users with Asymmetric Input
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.57 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Undergraduate Research Day 2020