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Selective attention to the mouth of talking faces in monolinguals and bilinguals aged 5 months to 5 years.

Authors
  • Morin-Lessard, Elizabeth1
  • Poulin-Dubois, Diane1
  • Segalowitz, Norman1
  • Byers-Heinlein, Krista1
  • 1 Department of Psychology.
Type
Published Article
Journal
Developmental psychology
Publication Date
Aug 01, 2019
Volume
55
Issue
8
Pages
1640–1655
Identifiers
DOI: 10.1037/dev0000750
PMID: 31169400
Source
Medline
Language
English
License
Unknown

Abstract

A talking face provides redundant cues on the mouth that might support language learning and highly salient social cues in the eyes. What drives children's looking toward the mouth versus eyes of a talking face? This study reports data from 292 children who viewed faces speaking English, French, and Russian. We investigated the impact of children's age (5 months to 5 years) and language background (monolingual English, monolingual French, bilingual English-French), and the speaker's language (dominant, nondominant, or nonnative) relative to children's native language(s). Data from 129 bilingual adults were also collected for comparison. Five-month-olds showed balanced attention to the eyes and mouth, but children up to 5 years tended to be most interested in the mouth. In contrast, adults were most interested in the eyes. We found little evidence for different patterns of attention for monolinguals versus bilinguals, or to a native versus a nonnative speaker. Using percentile scores, monolinguals with larger productive vocabularies looked more at the mouth, while bilinguals with larger comprehension vocabularies looked marginally less at the mouth, although both effects were small and not as robust with raw vocabulary scores. Children showed large but stable individual variability in their face scanning patterns across different speakers. Our results show that the way that children allocate their attention to talking faces continues to change from infancy through the preschool years and beyond. Future studies will need to go beyond looking at bilingualism, speaker language, and vocabulary size to understand what drives children's in-the-moment attention to talking faces. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

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