Reading-induced shifts of perceptual speech representations in auditory cortex
Autor: | Mirjam Keetels, Joao Correia, Jean Vroomen, Milene Bonte, Elia Formisano |
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Přispěvatelé: | RS: FPN CN 7, Language, RS: FPN CN 2, RS: FSE MaCSBio, RS: FPN MaCSBio, Audition, Cognitive Neuropsychology |
Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: |
Male
Speech recognition 0302 clinical medicine Reading (process) Parietal Lobe BRAIN media_common Temporal cortex Multidisciplinary SOUND 05 social sciences Magnetic Resonance Imaging RECALIBRATION Temporal Lobe Speech Perception Visual Perception Medicine Female SENSITIVITY Psychology INTEGRATION Cognitive psychology Adult media_common.quotation_subject Science ORGANIZATION Auditory cortex 050105 experimental psychology Article 03 medical and health sciences Young Adult Text mining Perceptual learning SYSTEMS Perception Learning to read Journal Article Humans Speech 0501 psychology and cognitive sciences Auditory Cortex IDENTIFICATION business.industry ACQUISITION Reading CHILDREN LEARN business 030217 neurology & neurosurgery Spoken language |
Zdroj: | Scientific Reports, 7(1):5143. Nature Publishing Group Scientific Reports, Vol 7, Iss 1, Pp 1-11 (2017) Scientific Reports |
ISSN: | 2045-2322 |
Popis: | 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. |
Databáze: | OpenAIRE |
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