期刊
ADVANCES IN METHODS AND PRACTICES IN PSYCHOLOGICAL SCIENCE
卷 4, 期 1, 页码 -出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/2515245920974622
关键词
language acquisition; bilingualism; speech perception; infant-directed speech; reproducibility; experimental methods; open data; open materials; preregistered
资金
- Natural Sciences and Engineering Research Council of Canada [2011-402470, 2015-03967]
- Social Sciences and Humanities Research Council of Canada [435-2015-1974, 435-2015-0385]
- Agence Nationale de la Recherche [ANR-17-EURE-0017, ANR10-IDEX-0001-02]
- European Commission [MSCA-IF-798658]
- European Research Council [609819, 773202]
- Leverhulme Trust [ECF-2015-009]
- UK Economic and Social Research Council [ES/L008955/1]
- Research Manitoba Research Manitoba, Children's Hospital Research Institute of Manitoba, University of Manitoba
- Office of the Deputy President (Research & Technology) funds from National University of Singapore
- National Institute of Child Health and Human Development Grant [R01HD095912]
- Western Sydney University [20311.87608]
The study found that bilingual and monolingual infants both prefer IDS over ADS, with no significant difference in preference magnitude between the two groups. However, bilingual infants exposed more to NAE as a native language showed stronger preference for IDS. This suggests that infants, whether monolingual or bilingual, are highly sensitive to the type and frequency of language input in their early environments.
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.
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