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Amount of speech exposure predicts vowel perception in four- to eight-month-olds
Stockholm University, Faculty of Humanities, Department of Linguistics.ORCID iD: 0000-0001-7658-9307
Stockholm University, Faculty of Humanities, Department of Linguistics.ORCID iD: 0000-0002-8036-516X
Stockholm University, Faculty of Humanities, Department of Linguistics.ORCID iD: 0000-0002-7980-3601
Number of Authors: 32019 (English)In: Developmental Cognitive Neuroscience, ISSN 1878-9293, E-ISSN 1878-9307, Vol. 36, article id 100622Article in journal (Refereed) Published
Abstract [en]

During the first year of life, infants shift their focus in speech perception from acoustic to linguistic information. This perceptual reorganization is related to exposure, and a direct relation has previously been demonstrated between amount of daily language exposure and mismatch response (MMR) amplitude to a native consonant contrast at around one year of age. The present study investigates the same relation between amount of speech exposure and MMR amplitude to a native vowel contrast at four to eight months of age. Importantly, the present study uses spectrally rotated speech in an effort to take general neural maturation into account. The amplitude of the part of the MMR that is tied specifically to speech processing correlates with amount of daily speech exposure, as estimated using the LENA system.

Place, publisher, year, edition, pages
2019. Vol. 36, article id 100622
Keywords [en]
Mismatch negativity, MMN, Mismatch response, MMR, ERP, EEG, Speech perception, Language exposure, Speech exposure, LENA, Infants, Swedish
National Category
Neurology Psychology
Identifiers
URN: urn:nbn:se:su:diva-170178DOI: 10.1016/j.dcn.2019.100622ISI: 000468166900020PubMedID: 30785071OAI: oai:DiVA.org:su-170178DiVA, id: diva2:1329180
Available from: 2019-06-24 Created: 2019-06-24 Last updated: 2019-12-12Bibliographically approved

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Marklund, EllenSchwarz, Iris-CorinnaLacerda, Francisco
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