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Explaining flexible continuous speech comprehension from individual motor rhythms
When speech is too fast, the tracking of the acoustic signal along the auditory pathway deteriorates, leading to suboptimal speech segmentation and decoding of speech information. Thus, speech comprehension is limited by the temporal constraints of the auditory system. Here we ask whether individual...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9975658/ https://www.ncbi.nlm.nih.gov/pubmed/36855868 http://dx.doi.org/10.1098/rspb.2022.2410 |
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author | Lubinus, Christina Keitel, Anne Obleser, Jonas Poeppel, David Rimmele, Johanna M. |
author_facet | Lubinus, Christina Keitel, Anne Obleser, Jonas Poeppel, David Rimmele, Johanna M. |
author_sort | Lubinus, Christina |
collection | PubMed |
description | When speech is too fast, the tracking of the acoustic signal along the auditory pathway deteriorates, leading to suboptimal speech segmentation and decoding of speech information. Thus, speech comprehension is limited by the temporal constraints of the auditory system. Here we ask whether individual differences in auditory-motor coupling strength in part shape these temporal constraints. In two behavioural experiments, we characterize individual differences in the comprehension of naturalistic speech as function of the individual synchronization between the auditory and motor systems and the preferred frequencies of the systems. Obviously, speech comprehension declined at higher speech rates. Importantly, however, both higher auditory-motor synchronization and higher spontaneous speech motor production rates were predictive of better speech-comprehension performance. Furthermore, performance increased with higher working memory capacity (digit span) and higher linguistic, model-based sentence predictability—particularly so at higher speech rates and for individuals with high auditory-motor synchronization. The data provide evidence for a model of speech comprehension in which individual flexibility of not only the motor system but also auditory-motor synchronization may play a modulatory role. |
format | Online Article Text |
id | pubmed-9975658 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-99756582023-03-02 Explaining flexible continuous speech comprehension from individual motor rhythms Lubinus, Christina Keitel, Anne Obleser, Jonas Poeppel, David Rimmele, Johanna M. Proc Biol Sci Neuroscience and Cognition When speech is too fast, the tracking of the acoustic signal along the auditory pathway deteriorates, leading to suboptimal speech segmentation and decoding of speech information. Thus, speech comprehension is limited by the temporal constraints of the auditory system. Here we ask whether individual differences in auditory-motor coupling strength in part shape these temporal constraints. In two behavioural experiments, we characterize individual differences in the comprehension of naturalistic speech as function of the individual synchronization between the auditory and motor systems and the preferred frequencies of the systems. Obviously, speech comprehension declined at higher speech rates. Importantly, however, both higher auditory-motor synchronization and higher spontaneous speech motor production rates were predictive of better speech-comprehension performance. Furthermore, performance increased with higher working memory capacity (digit span) and higher linguistic, model-based sentence predictability—particularly so at higher speech rates and for individuals with high auditory-motor synchronization. The data provide evidence for a model of speech comprehension in which individual flexibility of not only the motor system but also auditory-motor synchronization may play a modulatory role. The Royal Society 2023-03-08 2023-03-01 /pmc/articles/PMC9975658/ /pubmed/36855868 http://dx.doi.org/10.1098/rspb.2022.2410 Text en © 2023 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Neuroscience and Cognition Lubinus, Christina Keitel, Anne Obleser, Jonas Poeppel, David Rimmele, Johanna M. Explaining flexible continuous speech comprehension from individual motor rhythms |
title | Explaining flexible continuous speech comprehension from individual motor rhythms |
title_full | Explaining flexible continuous speech comprehension from individual motor rhythms |
title_fullStr | Explaining flexible continuous speech comprehension from individual motor rhythms |
title_full_unstemmed | Explaining flexible continuous speech comprehension from individual motor rhythms |
title_short | Explaining flexible continuous speech comprehension from individual motor rhythms |
title_sort | explaining flexible continuous speech comprehension from individual motor rhythms |
topic | Neuroscience and Cognition |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9975658/ https://www.ncbi.nlm.nih.gov/pubmed/36855868 http://dx.doi.org/10.1098/rspb.2022.2410 |
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