Sing to me, baby: Infants show neural tracking and rhythmic movements to live and dynamic maternal singing.

Autor:	Nguyen T; Faculty of Psychology, University of Vienna, Liebiggasse 5, 1010 Vienna, Austria; Neuroscience of Perception and Action Lab, Italian Institute of Technology, Viale Regina Elena 291, 00161 Rome, Italy. Electronic address: trinh.nguyen@iit.it., Reisner S; Faculty of Psychology, University of Vienna, Liebiggasse 5, 1010 Vienna, Austria., Lueger A; Faculty of Psychology, University of Vienna, Liebiggasse 5, 1010 Vienna, Austria., Wass SV; Department of Psychology, University of East London, University Way, London E16 2RD, United Kingdom., Hoehl S; Faculty of Psychology, University of Vienna, Liebiggasse 5, 1010 Vienna, Austria., Markova G; Faculty of Psychology, University of Vienna, Liebiggasse 5, 1010 Vienna, Austria; Institute for Early Life Care, Paracelsus Medical University, Strubergasse 13, 5020 Salzburg, Austria. Electronic address: gabriela.markova@univie.ac.at.
Jazyk:	angličtina
Zdroj:	Developmental cognitive neuroscience [Dev Cogn Neurosci] 2023 Dec; Vol. 64, pp. 101313. Date of Electronic Publication: 2023 Oct 24.
DOI:	10.1016/j.dcn.2023.101313
Abstrakt:	Infant-directed singing has unique acoustic characteristics that may allow even very young infants to respond to the rhythms carried through the caregiver's voice. The goal of this study was to examine neural and movement responses to live and dynamic maternal singing in 7-month-old infants and their relation to linguistic development. In total, 60 mother-infant dyads were observed during two singing conditions (playsong and lullaby). In Study 1 (n = 30), we measured infant EEG and used an encoding approach utilizing ridge regressions to measure neural tracking. In Study 2 (n =40), we coded infant rhythmic movements. In both studies, we assessed children's vocabulary when they were 20 months old. In Study 1, we found above-threshold neural tracking of maternal singing, with superior tracking of lullabies than playsongs. We also found that the acoustic features of infant-directed singing modulated tracking. In Study 2, infants showed more rhythmic movement to playsongs than lullabies. Importantly, neural coordination (Study 1) and rhythmic movement (Study 2) to playsongs were positively related to infants' expressive vocabulary at 20 months. These results highlight the importance of infants' brain and movement coordination to their caregiver's musical presentations, potentially as a function of musical variability. Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze:	MEDLINE
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