Prenatal Motherese? Newborn Speech Perception May Be Enhanced by Having a Young Sibling.

Psi Chi journal of undergraduate research Pub Date : 2011-01-01 DOI:10.24839/1089-4136.jn16.2.90

Tian Zhao, Christine Moon, Hugo Lagercrantz, Patricia Kuhl

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Abstract

Prenatal experience with infant- and child-directed speech (IDS/CDS) may affect newborns' speech perception. We examined this possibility using an existing neonatal database from a recent cross-language study (Moon, Lagercrantz, & Kuhl, 2011). Seventy-three American and Swedish neonates (M_age = 32.58 hr, SD = 13.58 hr) were retrospectively coded as either having High (n = 32) or Low (n = 41) prenatal IDS/CDS exposure based on whether there were any children younger than 4 years old in the household during pregnancy. We compared the mean sucks for contingent presentations of prototypes and nonprototypes of vowel stimuli (native or foreign) among groups. A mixed 3-way ANOVA revealed a significant interaction: Neonates responded to prototypes and nonprototypes differently in the High IDS/CDS group, whereas there was a lack of differential responses in the Low IDS/CDS group. Future research with well-controlled measurement of prenatal speech is warranted.

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产前母语？有一个年幼的兄弟姐妹可能会增强新生儿的语言感知能力

产前的婴幼儿指导言语（IDS/CDS）经验可能会影响新生儿的言语感知。我们利用最近一项跨语言研究（Moon、Lagercrantz 和 Kuhl，2011 年）中现有的新生儿数据库对这种可能性进行了研究。我们对 73 名美国和瑞典籍新生儿（Mage = 32.58 hr，SD = 13.58 hr）进行了回顾性编码，根据他们在怀孕期间家中是否有 4 岁以下的孩子，将其分为高产前 IDS/CDS 暴露（n = 32）或低产前 IDS/CDS 暴露（n = 41）。我们比较了各组间元音刺激（母语或外语）原型和非原型偶然呈现的平均吸吮量。三方混合方差分析显示，两者之间存在显著的交互作用：在高 IDS/CDS 组，新生儿对原型和非原型的反应不同，而在低 IDS/CDS 组则没有差异。未来的研究有必要对产前语言进行良好的测量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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