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A Multilab Study of Bilingual Infants: Exploring the Preference for Infant-Directed Speech

  • Krista Byers-Heinlein*
  • , Angeline Sin Mei Tsui
  • , Christina Bergmann
  • , Alexis K. Black
  • , Anna Brown
  • , Maria Julia Carbajal
  • , Samantha Durrant
  • , Christopher T. Fennell
  • , Anne Caroline Fiévet
  • , Michael C. Frank
  • , Anja Gampe
  • , Judit Gervain
  • , Nayeli Gonzalez-Gomez
  • , J. Kiley Hamlin
  • , Naomi Havron
  • , Mikołaj Hernik
  • , Shila Kerr
  • , Hilary Killam
  • , Kelsey Klassen
  • , Jessica E. Kosie
  • Ágnes Melinda Kovács, Casey Lew-Williams, Liquan Liu, Nivedita Mani, Caterina Marino, Meghan Mastroberardino, Victoria Mateu, Claire Noble, Adriel John Orena, Linda Polka, Christine E. Potter, Melanie S. Schreiner, Leher Singh, Melanie Soderstrom, Megha Sundara, Connor Waddell, Janet F. Werker, Stephanie Wermelinger
*Corresponding author for this work
  • Department of Psychology
  • Concordia University
  • Department of Psychology
  • Stanford University
  • Language Development Department
  • Max Planck Institute for Psycholinguistics
  • School of Audiology & Speech Sciences
  • University of British Columbia
  • School of Psychology
  • University of Liverpool
  • Département d’Études cognitives
  • École Normale Supérieure
  • University of Ottawa
  • Department of Psychology
  • University of Zurich
  • Université Paris Descartes
  • Department of Developmental and Social Psychology
  • University of Padua
  • Department of Psychology
  • Oxford Brookes University
  • Department of Psychology
  • Department of Psychology
  • University of Tromsø – The Arctic University of Norway
  • School of Communication Sciences and Disorders
  • McGill University
  • Department of Psychology
  • University of Manitoba
  • Princeton University
  • School of Social Sciences and Psychology
  • Western Sydney University
  • University of Göttingen
  • Department of Spanish and Portuguese
  • University of California at Los Angeles
  • Department of Psychology
  • National University of Singapore
  • Department of Linguistics

Research output: Contribution to journal › Article › peer-review

Abstract (may include machine translation)

From the earliest months of life, infants prefer listening to and learn better from infant-directed speech (IDS) compared with adult-directed speech (ADS). Yet IDS differs within communities, across languages, and across cultures, both in form and in prevalence. This large-scale, multisite study used the diversity of bilingual infant experiences to explore the impact of different types of linguistic experience on infants’ IDS preference. As part of the multilab ManyBabies 1 project, we compared preference for North American English (NAE) IDS in lab-matched samples of 333 bilingual and 384 monolingual infants tested in 17 labs in seven countries. The tested infants were in two age groups: 6 to 9 months and 12 to 15 months. We found that bilingual and monolingual infants both preferred IDS to ADS, and the two groups did not differ in terms of the overall magnitude of this preference. However, among bilingual infants who were acquiring NAE as a native language, greater exposure to NAE was associated with a stronger IDS preference. These findings extend the previous finding from ManyBabies 1 that monolinguals learning NAE as a native language showed a stronger IDS preference than infants unexposed to NAE. Together, our findings indicate that IDS preference likely makes similar contributions to monolingual and bilingual development, and that infants are exquisitely sensitive to the nature and frequency of different types of language input in their early environments.

Original languageEnglish
JournalAdvances in Methods and Practices in Psychological Science
Volume4
Issue number1
DOIs
StatePublished - 2021

Keywords

  • bilingualism
  • experimental methods
  • infant-directed speech
  • language acquisition
  • open data
  • open materials
  • preregistered
  • reproducibility
  • speech perception

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