The effects of maternal input on language in the absence of genetic confounds: Vocabulary development in internationally adopted children

被引：7

作者：

Coffey, Joseph R. ^{[1
]}

Shafto, Carissa L. ^{[1
]}

Geren, Joy C. ^{[1
]}

Snedeker, Jesse ^{[1
]}

机构：

[1] Harvard Univ, Dept Psychol, 33 Kirkland St,William James Hall 1080, Cambridge, MA 02138 USA

来源：

CHILD DEVELOPMENT | 2022年 / 93卷 / 01期

基金：

美国国家科学基金会;

关键词：

MULTIVARIATE PATH-ANALYSIS; ENVIRONMENTAL-INFLUENCES; SOCIOECONOMIC-STATUS; DIRECTED SPEECH; COMMUNICATIVE DEVELOPMENT; COGNITIVE-DEVELOPMENT; TODDLER VOCABULARY; HERITABILITY; GROWTH; TWIN;

D O I：

10.1111/cdev.13688

中图分类号：

G44 [教育心理学];

学科分类号：

0402 ; 040202 ;

摘要：

Previous studies have found correlations between parent input and child language outcomes, providing prima facie evidence for a causal relation. However, this could also reflect the effects of shared genes. The present study removed this genetic confound by measuring English vocabulary growth in 29 preschool-aged children (21 girls) aged 31-73 months and 17 infants (all girls) aged 15-32 months adopted from China and Eastern Europe and comparing it to speech produced by their adoptive mothers. Vocabulary growth in both groups was correlated with maternal input features; in infants with mean-length of maternal utterance, and in preschoolers with both mean-length of utterance and lexical diversity. Thus, input effects on language outcomes persist even in the absence of genetic confounds.

引用

页码：237 / 253

页数：17

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