Randomized Trial to Increase Speech Sound Differentiation in Infants Born Preterm
Randomized Trial to Increase Speech Sound Differentiation in Infants Born Preterm
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DOI：
10.1016/j.jpeds.2021.10.035
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发表时间：
2022-01-20
影响因子：
5.1
通讯作者：
Maitre, Nathalie L.
中科院分区：
文献类型：
--
作者：
Richard, Celine;Jeanvoine, Arnaud;Maitre, Nathalie L.
目的测试婴儿导向的外语主动学习是否会专门增加语音分化的干预language.Study设计试点随机对照试验的稳定早产儿在新生儿重症监护病房正常的听觉脑干反应，其父母只说英语，没有音乐训练或家族性听力异常的干预语言，而不是减少分化。分配到3组中的1组：被动暴露于英语婴儿导向的摇篮曲和阅读（英语丰富，对照组）和通过主动吮吸装有传感器的奶嘴来接触婴儿导向的法语摇篮曲和阅读（英语环境，法语学习组）或婴儿导向的普通话摇篮曲和阅读（英语环境，中文学习组）。主要结果的措施是干预前和干预后的事件相关电位（ERPs）在响应标准化的语音音节，在每一个language.Results四十一个科目完成了研究，包括15个在英语丰富的控制组和13个在法国特遣队和中国特遣队组。出生时的中位孕龄为34周（IQR，8.75周）;干预时的月经后年龄范围为36至46周，3组之间相似。干预后平均ERP振幅对英语语音没有差异，在3组;然而，法语伴随组的法语语音分化的ERP幅度大于汉语伴随组或英语丰富组，汉语联想组汉语音辨别的ERP幅值大于其他两组。定向外语暴露增加了干预语言特有的语音分化，而没有减少对英语的反应分化。
Objective To test whether infant-directed foreign language active learning would specifically increase speech sound differentiation to the intervention language while not decreasing differentiation in response to English.Study design Pilot randomized controlled trial of stable infants born preterm in the newborn intensive care unit with normal auditory brainstem responses, whose parents spoke only English and had no musical training or familial hearing abnormality. Assignment was to 1 of 3 groups: passive exposure to English infant-directed lullabies and readings (English-enrichment, control group) and contingent exposure by active sucking on a sensor-equipped pacifier to either infant-directed French lullabies and readings (English environment, French-contingent learning group) or infant-directed Mandarin lullabies and readings (English environment, Chinese-contingent learning group). The main outcome measures were preintervention and postintervention event-related potentials (ERPs) in response to standardized speech syllables in each language.Results Forty-one subjects completed the study, including 15 in the English-enrichment control group and 13 each in the French-contingent and Chinese-contingent groups. The median gestational age at birth was 34 weeks (IQR, 8.75 weeks); postmenstrual age at intervention ranged from 36 to 46 weeks and was similar across the 3 groups. Postintervention mean ERP amplitude to pairs of English speech sounds did not differ across the 3 groups; however, ERP amplitude in French sound differentiation was greater in the French-contingent group than in the Chinese-contingent or English-enrichment groups, and ERP amplitude greater in Chinese sound differentiation was greater in the Chinese-contingent group compared with the other 2 groups.Conclusion Contingent infant-directed foreign language exposure increased speech sound differentiation specific to the intervention language and did not decrease differentiation in response to English.