The effect of unintelligible speech noise on children’s verbal working memory performance

Classroom noise, particularly speech noise from students, appears to disrupt verbal working memory processes essential for learning tasks such as reading and writing. Such negative interference has been alternatively explained as either the effect of phonological intrusion from speech noise into the...

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Main Authors: Gaia Spicciarelli, Flavia Gheller, Michael Celli, Barbara Arfé
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-05-01
Series:Frontiers in Psychology
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Online Access:https://www.frontiersin.org/articles/10.3389/fpsyg.2025.1565112/full
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author Gaia Spicciarelli
Flavia Gheller
Flavia Gheller
Michael Celli
Barbara Arfé
Barbara Arfé
author_facet Gaia Spicciarelli
Flavia Gheller
Flavia Gheller
Michael Celli
Barbara Arfé
Barbara Arfé
author_sort Gaia Spicciarelli
collection DOAJ
description Classroom noise, particularly speech noise from students, appears to disrupt verbal working memory processes essential for learning tasks such as reading and writing. Such negative interference has been alternatively explained as either the effect of phonological intrusion from speech noise into the phonological loop processes of working memory or the diversion of general attentional resources away from working memory processes. These effects have been studied primarily in relation to intelligible speech, while the impact of unintelligible speech, such as multitalker babble—a common source of noise in schools—has received less attention. The present study aimed to examine the effects of unintelligible multitalker babble noise on the performance of 38 students aged 8 to 10 years in low (Digit Span) and high demanding (Reading Span) verbal working memory tasks. We examined whether the effects of multitalker babble noise differed based on children’s age and their visual attentional resources. Verbal working memory and visual attentional skills were assessed in quiet and multitalker babble noise across three age groups: 8, 9, and 10 years. Our findings revealed that multitalker babble noise disrupts significantly verbal working memory performance in complex verbal working memory tasks, like the Reading Span task, but has minimal impact on low demanding tasks, like Digit Span Forward and Backward. Although children’s visual attentional skills significantly contributed to their verbal working memory performance, they alone cannot explain the negative effect of multitalker babble noise. Interestingly, although children’s behavioral performance did not significantly differ across acoustic conditions for most tasks, they reported higher cognitive effort in noisy environments. This highlights a discrepancy between perceived effort and actual performance, emphasizing the importance of integrating multiple measures to assess the impact of noise on cognitive processes.
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spelling doaj-art-a724c72cd761455caf176c8a932fb5212025-08-20T02:34:12ZengFrontiers Media S.A.Frontiers in Psychology1664-10782025-05-011610.3389/fpsyg.2025.15651121565112The effect of unintelligible speech noise on children’s verbal working memory performanceGaia Spicciarelli0Flavia Gheller1Flavia Gheller2Michael Celli3Barbara Arfé4Barbara Arfé5Department of Developmental Psychology and Socialization, University of Padova, Padua, ItalyDepartment of Developmental Psychology and Socialization, University of Padova, Padua, ItalyI-APPROVE Centre, University of Padova, Padua, ItalyDepartment of Computer, Control and Management Engineering, Sapienza University of Rome, Rome, ItalyDepartment of Developmental Psychology and Socialization, University of Padova, Padua, ItalyI-APPROVE Centre, University of Padova, Padua, ItalyClassroom noise, particularly speech noise from students, appears to disrupt verbal working memory processes essential for learning tasks such as reading and writing. Such negative interference has been alternatively explained as either the effect of phonological intrusion from speech noise into the phonological loop processes of working memory or the diversion of general attentional resources away from working memory processes. These effects have been studied primarily in relation to intelligible speech, while the impact of unintelligible speech, such as multitalker babble—a common source of noise in schools—has received less attention. The present study aimed to examine the effects of unintelligible multitalker babble noise on the performance of 38 students aged 8 to 10 years in low (Digit Span) and high demanding (Reading Span) verbal working memory tasks. We examined whether the effects of multitalker babble noise differed based on children’s age and their visual attentional resources. Verbal working memory and visual attentional skills were assessed in quiet and multitalker babble noise across three age groups: 8, 9, and 10 years. Our findings revealed that multitalker babble noise disrupts significantly verbal working memory performance in complex verbal working memory tasks, like the Reading Span task, but has minimal impact on low demanding tasks, like Digit Span Forward and Backward. Although children’s visual attentional skills significantly contributed to their verbal working memory performance, they alone cannot explain the negative effect of multitalker babble noise. Interestingly, although children’s behavioral performance did not significantly differ across acoustic conditions for most tasks, they reported higher cognitive effort in noisy environments. This highlights a discrepancy between perceived effort and actual performance, emphasizing the importance of integrating multiple measures to assess the impact of noise on cognitive processes.https://www.frontiersin.org/articles/10.3389/fpsyg.2025.1565112/fullnoisechildrenworking memoryattentioncognitive effort
spellingShingle Gaia Spicciarelli
Flavia Gheller
Flavia Gheller
Michael Celli
Barbara Arfé
Barbara Arfé
The effect of unintelligible speech noise on children’s verbal working memory performance
Frontiers in Psychology
noise
children
working memory
attention
cognitive effort
title The effect of unintelligible speech noise on children’s verbal working memory performance
title_full The effect of unintelligible speech noise on children’s verbal working memory performance
title_fullStr The effect of unintelligible speech noise on children’s verbal working memory performance
title_full_unstemmed The effect of unintelligible speech noise on children’s verbal working memory performance
title_short The effect of unintelligible speech noise on children’s verbal working memory performance
title_sort effect of unintelligible speech noise on children s verbal working memory performance
topic noise
children
working memory
attention
cognitive effort
url https://www.frontiersin.org/articles/10.3389/fpsyg.2025.1565112/full
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