Journal
CHILD DEVELOPMENT
Volume 89, Issue 2, Pages e29-e41Publisher
WILEY
DOI: 10.1111/cdev.12768
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Funding
- Simon Fraser University Small SSHRC
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When speaking to infants, mothers often alter their speech compared to how they speak to adults, but findings for fathers are mixed. This study examined interactions (N=30) between fathers and infants (M-age +/- SD=7.8 +/- 4.3months) in a small-scale society in Vanuatu and two urban societies in North America. Fundamental frequency (F-0) and speech rate were measured in infant-directed and adult-directed speech. When speaking to infants, fathers in both groups increased their F-0 range, yet only Vanuatu fathers increased their average F-0. Conversely, North American fathers slowed down their speech rate to infants, whereas Vanuatu fathers did not. Behavioral traits can vary across distant cultures while still potentially solving similar communicative problems.
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