Role of articulatory motor networks in perceptual categorization of speech signals : a 7T fMRI study
© The Author(s) 2023. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissionsoup.com..
Speech and language processing involve complex interactions between cortical areas necessary for articulatory movements and auditory perception and a range of areas through which these are connected and interact. Despite their fundamental importance, the precise mechanisms underlying these processes are not fully elucidated. We measured BOLD signals from normal hearing participants using high-field 7 Tesla fMRI with 1-mm isotropic voxel resolution. The subjects performed 2 speech perception tasks (discrimination and classification) and a speech production task during the scan. By employing univariate and multivariate pattern analyses, we identified the neural signatures associated with speech production and perception. The left precentral, premotor, and inferior frontal cortex regions showed significant activations that correlated with phoneme category variability during perceptual discrimination tasks. In addition, the perceived sound categories could be decoded from signals in a region of interest defined based on activation related to production task. The results support the hypothesis that articulatory motor networks in the left hemisphere, typically associated with speech production, may also play a critical role in the perceptual categorization of syllables. The study provides valuable insights into the intricate neural mechanisms that underlie speech processing.
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:33 |
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| Enthalten in: |
Cerebral cortex (New York, N.Y. : 1991) - 33(2023), 24 vom: 09. Dez., Seite 11517-11525 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lankinen, Kaisu [VerfasserIn] |
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| Links: |
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| Themen: |
7T fMRI |
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| Anmerkungen: |
Date Completed 18.12.2023 Date Revised 16.04.2024 published: Print UpdateOf: bioRxiv. 2023 Jul 03;:. - PMID 37461673 Citation Status MEDLINE |
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| doi: |
10.1093/cercor/bhad384 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM363443614 |
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| 520 | |a © The Author(s) 2023. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissionsoup.com. | ||
| 520 | |a Speech and language processing involve complex interactions between cortical areas necessary for articulatory movements and auditory perception and a range of areas through which these are connected and interact. Despite their fundamental importance, the precise mechanisms underlying these processes are not fully elucidated. We measured BOLD signals from normal hearing participants using high-field 7 Tesla fMRI with 1-mm isotropic voxel resolution. The subjects performed 2 speech perception tasks (discrimination and classification) and a speech production task during the scan. By employing univariate and multivariate pattern analyses, we identified the neural signatures associated with speech production and perception. The left precentral, premotor, and inferior frontal cortex regions showed significant activations that correlated with phoneme category variability during perceptual discrimination tasks. In addition, the perceived sound categories could be decoded from signals in a region of interest defined based on activation related to production task. The results support the hypothesis that articulatory motor networks in the left hemisphere, typically associated with speech production, may also play a critical role in the perceptual categorization of syllables. The study provides valuable insights into the intricate neural mechanisms that underlie speech processing | ||
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| 650 | 4 | |a articulatory motor areas | |
| 650 | 4 | |a speech perception | |
| 650 | 4 | |a speech production | |
| 700 | 1 | |a Ahveninen, Jyrki |e verfasserin |4 aut | |
| 700 | 1 | |a Uluç, Işıl |e verfasserin |4 aut | |
| 700 | 1 | |a Daneshzand, Mohammad |e verfasserin |4 aut | |
| 700 | 1 | |a Mareyam, Azma |e verfasserin |4 aut | |
| 700 | 1 | |a Kirsch, John E |e verfasserin |4 aut | |
| 700 | 1 | |a Polimeni, Jonathan R |e verfasserin |4 aut | |
| 700 | 1 | |a Healy, Brian C |e verfasserin |4 aut | |
| 700 | 1 | |a Tian, Qiyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Khan, Sheraz |e verfasserin |4 aut | |
| 700 | 1 | |a Nummenmaa, Aapo |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Qing Mei |e verfasserin |4 aut | |
| 700 | 1 | |a Green, Jordan R |e verfasserin |4 aut | |
| 700 | 1 | |a Kimberley, Teresa J |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Shasha |e verfasserin |4 aut | |
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