Cortical alpha oscillations in cochlear implant users reflect subjective listening effort during speech-in-noise perception.

Listening to speech in noise is effortful for individuals with hearing loss, even if they have received a hearing prosthesis such as a hearing aid or cochlear implant (CI). At present, little is known about the neural functions that support listening effort. One form of neural activity that has been...

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Autores principales:	Brandon T Paul, Joseph Chen, Trung Le, Vincent Lin, Andrew Dimitrijevic
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7a193f6c71544e048db808546da23f7b
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spelling	oai:doaj.org-article:7a193f6c71544e048db808546da23f7b2021-12-02T20:09:24ZCortical alpha oscillations in cochlear implant users reflect subjective listening effort during speech-in-noise perception.1932-620310.1371/journal.pone.0254162https://doaj.org/article/7a193f6c71544e048db808546da23f7b2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0254162https://doaj.org/toc/1932-6203Listening to speech in noise is effortful for individuals with hearing loss, even if they have received a hearing prosthesis such as a hearing aid or cochlear implant (CI). At present, little is known about the neural functions that support listening effort. One form of neural activity that has been suggested to reflect listening effort is the power of 8-12 Hz (alpha) oscillations measured by electroencephalography (EEG). Alpha power in two cortical regions has been associated with effortful listening-left inferior frontal gyrus (IFG), and parietal cortex-but these relationships have not been examined in the same listeners. Further, there are few studies available investigating neural correlates of effort in the individuals with cochlear implants. Here we tested 16 CI users in a novel effort-focused speech-in-noise listening paradigm, and confirm a relationship between alpha power and self-reported effort ratings in parietal regions, but not left IFG. The parietal relationship was not linear but quadratic, with alpha power comparatively lower when effort ratings were at the top and bottom of the effort scale, and higher when effort ratings were in the middle of the scale. Results are discussed in terms of cognitive systems that are engaged in difficult listening situations, and the implication for clinical translation.Brandon T PaulJoseph ChenTrung LeVincent LinAndrew DimitrijevicPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0254162 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Brandon T Paul Joseph Chen Trung Le Vincent Lin Andrew Dimitrijevic Cortical alpha oscillations in cochlear implant users reflect subjective listening effort during speech-in-noise perception.
description	Listening to speech in noise is effortful for individuals with hearing loss, even if they have received a hearing prosthesis such as a hearing aid or cochlear implant (CI). At present, little is known about the neural functions that support listening effort. One form of neural activity that has been suggested to reflect listening effort is the power of 8-12 Hz (alpha) oscillations measured by electroencephalography (EEG). Alpha power in two cortical regions has been associated with effortful listening-left inferior frontal gyrus (IFG), and parietal cortex-but these relationships have not been examined in the same listeners. Further, there are few studies available investigating neural correlates of effort in the individuals with cochlear implants. Here we tested 16 CI users in a novel effort-focused speech-in-noise listening paradigm, and confirm a relationship between alpha power and self-reported effort ratings in parietal regions, but not left IFG. The parietal relationship was not linear but quadratic, with alpha power comparatively lower when effort ratings were at the top and bottom of the effort scale, and higher when effort ratings were in the middle of the scale. Results are discussed in terms of cognitive systems that are engaged in difficult listening situations, and the implication for clinical translation.
format	article
author	Brandon T Paul Joseph Chen Trung Le Vincent Lin Andrew Dimitrijevic
author_facet	Brandon T Paul Joseph Chen Trung Le Vincent Lin Andrew Dimitrijevic
author_sort	Brandon T Paul
title	Cortical alpha oscillations in cochlear implant users reflect subjective listening effort during speech-in-noise perception.
title_short	Cortical alpha oscillations in cochlear implant users reflect subjective listening effort during speech-in-noise perception.
title_full	Cortical alpha oscillations in cochlear implant users reflect subjective listening effort during speech-in-noise perception.
title_fullStr	Cortical alpha oscillations in cochlear implant users reflect subjective listening effort during speech-in-noise perception.
title_full_unstemmed	Cortical alpha oscillations in cochlear implant users reflect subjective listening effort during speech-in-noise perception.
title_sort	cortical alpha oscillations in cochlear implant users reflect subjective listening effort during speech-in-noise perception.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/7a193f6c71544e048db808546da23f7b
work_keys_str_mv	AT brandontpaul corticalalphaoscillationsincochlearimplantusersreflectsubjectivelisteningeffortduringspeechinnoiseperception AT josephchen corticalalphaoscillationsincochlearimplantusersreflectsubjectivelisteningeffortduringspeechinnoiseperception AT trungle corticalalphaoscillationsincochlearimplantusersreflectsubjectivelisteningeffortduringspeechinnoiseperception AT vincentlin corticalalphaoscillationsincochlearimplantusersreflectsubjectivelisteningeffortduringspeechinnoiseperception AT andrewdimitrijevic corticalalphaoscillationsincochlearimplantusersreflectsubjectivelisteningeffortduringspeechinnoiseperception
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Cortical alpha oscillations in cochlear implant users reflect subjective listening effort during speech-in-noise perception.

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