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Independent impacts of age and hearing loss on spatial release in a complex auditory environment

Listeners in complex auditory environments can benefit from the ability to use a variety of spatial and spectrotemporal cues for sound source segregation. Probing these abilities is an essential part of gaining a more complete understanding of why listeners differ in navigating the auditory environm...

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Autores principales: Gallun, Frederick J., Diedesch, Anna C., Kampel, Sean D., Jakien, Kasey M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3870327/
https://www.ncbi.nlm.nih.gov/pubmed/24391535
http://dx.doi.org/10.3389/fnins.2013.00252
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author Gallun, Frederick J.
Diedesch, Anna C.
Kampel, Sean D.
Jakien, Kasey M.
author_facet Gallun, Frederick J.
Diedesch, Anna C.
Kampel, Sean D.
Jakien, Kasey M.
author_sort Gallun, Frederick J.
collection PubMed
description Listeners in complex auditory environments can benefit from the ability to use a variety of spatial and spectrotemporal cues for sound source segregation. Probing these abilities is an essential part of gaining a more complete understanding of why listeners differ in navigating the auditory environment. Two fundamental processes that can impact the auditory systems of individual listeners are aging and hearing loss. One difficulty with uncovering the independent effects of age and hearing loss on spatial release is the commonly observed phenomenon of age-related hearing loss. In order to reveal the effects of aging on spatial hearing, it is essential to develop testing methods that reduce the influence of hearing loss on the outcomes. The statistical power needed for such testing generally requires a larger number of participants than can easily be tested using traditional behavioral methods. This work describes the development and validation of a rapid method by which listeners can be categorized in terms of their ability to use spatial and spectrotemporal cues to separate competing speech streams. Results show that when age and audibility are not covarying, age alone can be shown to substantially reduce spatial release from masking. These data support the hypothesis that aging, independent of an individual's hearing threshold, can result in changes in the cortical and/or subcortical structures essential for spatial hearing.
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spelling pubmed-38703272014-01-03 Independent impacts of age and hearing loss on spatial release in a complex auditory environment Gallun, Frederick J. Diedesch, Anna C. Kampel, Sean D. Jakien, Kasey M. Front Neurosci Psychology Listeners in complex auditory environments can benefit from the ability to use a variety of spatial and spectrotemporal cues for sound source segregation. Probing these abilities is an essential part of gaining a more complete understanding of why listeners differ in navigating the auditory environment. Two fundamental processes that can impact the auditory systems of individual listeners are aging and hearing loss. One difficulty with uncovering the independent effects of age and hearing loss on spatial release is the commonly observed phenomenon of age-related hearing loss. In order to reveal the effects of aging on spatial hearing, it is essential to develop testing methods that reduce the influence of hearing loss on the outcomes. The statistical power needed for such testing generally requires a larger number of participants than can easily be tested using traditional behavioral methods. This work describes the development and validation of a rapid method by which listeners can be categorized in terms of their ability to use spatial and spectrotemporal cues to separate competing speech streams. Results show that when age and audibility are not covarying, age alone can be shown to substantially reduce spatial release from masking. These data support the hypothesis that aging, independent of an individual's hearing threshold, can result in changes in the cortical and/or subcortical structures essential for spatial hearing. Frontiers Media S.A. 2013-12-23 /pmc/articles/PMC3870327/ /pubmed/24391535 http://dx.doi.org/10.3389/fnins.2013.00252 Text en Copyright © 2013 Gallun, Diedesch, Kampel and Jakien. http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Psychology
Gallun, Frederick J.
Diedesch, Anna C.
Kampel, Sean D.
Jakien, Kasey M.
Independent impacts of age and hearing loss on spatial release in a complex auditory environment
title Independent impacts of age and hearing loss on spatial release in a complex auditory environment
title_full Independent impacts of age and hearing loss on spatial release in a complex auditory environment
title_fullStr Independent impacts of age and hearing loss on spatial release in a complex auditory environment
title_full_unstemmed Independent impacts of age and hearing loss on spatial release in a complex auditory environment
title_short Independent impacts of age and hearing loss on spatial release in a complex auditory environment
title_sort independent impacts of age and hearing loss on spatial release in a complex auditory environment
topic Psychology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3870327/
https://www.ncbi.nlm.nih.gov/pubmed/24391535
http://dx.doi.org/10.3389/fnins.2013.00252
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