Reading-induced shifts of perceptual speech representations in auditory cortex

Abstract Learning to read requires the formation of efficient neural associations between written and spoken language. Whether these associations influence the auditory cortical representation of speech remains unknown. Here we address this question by combining multivariate functional MRI analysis...

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Autores principales:	Milene Bonte, Joao M. Correia, Mirjam Keetels, Jean Vroomen, Elia Formisano
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ca1510e2f793473eb265db15fcf1e21d
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id	oai:doaj.org-article:ca1510e2f793473eb265db15fcf1e21d
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spelling	oai:doaj.org-article:ca1510e2f793473eb265db15fcf1e21d2021-12-02T11:52:21ZReading-induced shifts of perceptual speech representations in auditory cortex10.1038/s41598-017-05356-32045-2322https://doaj.org/article/ca1510e2f793473eb265db15fcf1e21d2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05356-3https://doaj.org/toc/2045-2322Abstract Learning to read requires the formation of efficient neural associations between written and spoken language. Whether these associations influence the auditory cortical representation of speech remains unknown. Here we address this question by combining multivariate functional MRI analysis and a newly-developed ‘text-based recalibration’ paradigm. In this paradigm, the pairing of visual text and ambiguous speech sounds shifts (i.e. recalibrates) the perceptual interpretation of the ambiguous sounds in subsequent auditory-only trials. We show that it is possible to retrieve the text-induced perceptual interpretation from fMRI activity patterns in the posterior superior temporal cortex. Furthermore, this auditory cortical region showed significant functional connectivity with the inferior parietal lobe (IPL) during the pairing of text with ambiguous speech. Our findings indicate that reading-related audiovisual mappings can adjust the auditory cortical representation of speech in typically reading adults. Additionally, they suggest the involvement of the IPL in audiovisual and/or higher-order perceptual processes leading to this adjustment. When applied in typical and dyslexic readers of different ages, our text-based recalibration paradigm may reveal relevant aspects of perceptual learning and plasticity during successful and failing reading development.Milene BonteJoao M. CorreiaMirjam KeetelsJean VroomenElia FormisanoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Milene Bonte Joao M. Correia Mirjam Keetels Jean Vroomen Elia Formisano Reading-induced shifts of perceptual speech representations in auditory cortex
description	Abstract Learning to read requires the formation of efficient neural associations between written and spoken language. Whether these associations influence the auditory cortical representation of speech remains unknown. Here we address this question by combining multivariate functional MRI analysis and a newly-developed ‘text-based recalibration’ paradigm. In this paradigm, the pairing of visual text and ambiguous speech sounds shifts (i.e. recalibrates) the perceptual interpretation of the ambiguous sounds in subsequent auditory-only trials. We show that it is possible to retrieve the text-induced perceptual interpretation from fMRI activity patterns in the posterior superior temporal cortex. Furthermore, this auditory cortical region showed significant functional connectivity with the inferior parietal lobe (IPL) during the pairing of text with ambiguous speech. Our findings indicate that reading-related audiovisual mappings can adjust the auditory cortical representation of speech in typically reading adults. Additionally, they suggest the involvement of the IPL in audiovisual and/or higher-order perceptual processes leading to this adjustment. When applied in typical and dyslexic readers of different ages, our text-based recalibration paradigm may reveal relevant aspects of perceptual learning and plasticity during successful and failing reading development.
format	article
author	Milene Bonte Joao M. Correia Mirjam Keetels Jean Vroomen Elia Formisano
author_facet	Milene Bonte Joao M. Correia Mirjam Keetels Jean Vroomen Elia Formisano
author_sort	Milene Bonte
title	Reading-induced shifts of perceptual speech representations in auditory cortex
title_short	Reading-induced shifts of perceptual speech representations in auditory cortex
title_full	Reading-induced shifts of perceptual speech representations in auditory cortex
title_fullStr	Reading-induced shifts of perceptual speech representations in auditory cortex
title_full_unstemmed	Reading-induced shifts of perceptual speech representations in auditory cortex
title_sort	reading-induced shifts of perceptual speech representations in auditory cortex
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/ca1510e2f793473eb265db15fcf1e21d
work_keys_str_mv	AT milenebonte readinginducedshiftsofperceptualspeechrepresentationsinauditorycortex AT joaomcorreia readinginducedshiftsofperceptualspeechrepresentationsinauditorycortex AT mirjamkeetels readinginducedshiftsofperceptualspeechrepresentationsinauditorycortex AT jeanvroomen readinginducedshiftsofperceptualspeechrepresentationsinauditorycortex AT eliaformisano readinginducedshiftsofperceptualspeechrepresentationsinauditorycortex
_version_	1718395070308155392

Reading-induced shifts of perceptual speech representations in auditory cortex

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