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Recall of Reverberant Speech in Quiet and Four-Talker Babble Noise

Using behavioral evaluation of free recall performance, we investigated whether reverberation and/or noise affected memory performance in normal-hearing adults. Thirty-four participants performed a free-recall task in which they were instructed to repeat the initial word after each sentence and to r...

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Autores principales: Koo, Miseung, Jeon, Jihui, Moon, Hwayoung, Suh, Myung-Whan, Lee, Jun-Ho, Oh, Seung-Ha, Park, Moo-Kyun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8301929/
https://www.ncbi.nlm.nih.gov/pubmed/34356126
http://dx.doi.org/10.3390/brainsci11070891
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author Koo, Miseung
Jeon, Jihui
Moon, Hwayoung
Suh, Myung-Whan
Lee, Jun-Ho
Oh, Seung-Ha
Park, Moo-Kyun
author_facet Koo, Miseung
Jeon, Jihui
Moon, Hwayoung
Suh, Myung-Whan
Lee, Jun-Ho
Oh, Seung-Ha
Park, Moo-Kyun
author_sort Koo, Miseung
collection PubMed
description Using behavioral evaluation of free recall performance, we investigated whether reverberation and/or noise affected memory performance in normal-hearing adults. Thirty-four participants performed a free-recall task in which they were instructed to repeat the initial word after each sentence and to remember the target words after each list of seven sentences, in a 2 (reverberation) × 2 (noise) factorial design. Pupil dilation responses (baseline and peak pupil dilation) were also recorded sentence-by-sentence while the participants were trying to remember the target words. In noise, speech was presented at an easily audible level using an individualized signal-to-noise ratio (95% speech intelligibility). As expected, recall performance was significantly lower in the noisy environment than in the quiet condition. Regardless of noise interference or reverberation, sentence- baseline values gradually increased with an increase in the number of words to be remembered for a subsequent free-recall task. Long reverberation time had no significant effect on memory retrieval of verbal stimuli or pupillary responses during encoding.
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spelling pubmed-83019292021-07-24 Recall of Reverberant Speech in Quiet and Four-Talker Babble Noise Koo, Miseung Jeon, Jihui Moon, Hwayoung Suh, Myung-Whan Lee, Jun-Ho Oh, Seung-Ha Park, Moo-Kyun Brain Sci Article Using behavioral evaluation of free recall performance, we investigated whether reverberation and/or noise affected memory performance in normal-hearing adults. Thirty-four participants performed a free-recall task in which they were instructed to repeat the initial word after each sentence and to remember the target words after each list of seven sentences, in a 2 (reverberation) × 2 (noise) factorial design. Pupil dilation responses (baseline and peak pupil dilation) were also recorded sentence-by-sentence while the participants were trying to remember the target words. In noise, speech was presented at an easily audible level using an individualized signal-to-noise ratio (95% speech intelligibility). As expected, recall performance was significantly lower in the noisy environment than in the quiet condition. Regardless of noise interference or reverberation, sentence- baseline values gradually increased with an increase in the number of words to be remembered for a subsequent free-recall task. Long reverberation time had no significant effect on memory retrieval of verbal stimuli or pupillary responses during encoding. MDPI 2021-07-05 /pmc/articles/PMC8301929/ /pubmed/34356126 http://dx.doi.org/10.3390/brainsci11070891 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Koo, Miseung
Jeon, Jihui
Moon, Hwayoung
Suh, Myung-Whan
Lee, Jun-Ho
Oh, Seung-Ha
Park, Moo-Kyun
Recall of Reverberant Speech in Quiet and Four-Talker Babble Noise
title Recall of Reverberant Speech in Quiet and Four-Talker Babble Noise
title_full Recall of Reverberant Speech in Quiet and Four-Talker Babble Noise
title_fullStr Recall of Reverberant Speech in Quiet and Four-Talker Babble Noise
title_full_unstemmed Recall of Reverberant Speech in Quiet and Four-Talker Babble Noise
title_short Recall of Reverberant Speech in Quiet and Four-Talker Babble Noise
title_sort recall of reverberant speech in quiet and four-talker babble noise
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8301929/
https://www.ncbi.nlm.nih.gov/pubmed/34356126
http://dx.doi.org/10.3390/brainsci11070891
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