Longitudinal predictors of early language in infants with Down syndrome: A preliminary study
Longitudinal predictors of early language in infants with Down syndrome: A preliminary study
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DOI：
10.1016/j.ridd.2017.12.021
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发表时间：
2018-10-01
影响因子：
3.1
通讯作者：
Buckley, Sue
中科院分区：
文献类型：
--
作者：
Mason-Apps, Emily;Stojanovik, Vesna;Buckley, Sue
目的：唐氏综合征(DS)儿童的语言发展明显滞后于他们的一般认知发展，尤其是表达能力比接受能力更差。虽然早期的社交技能，包括手势和联合注意力，已经被证明与DS患者后来的语言结果有关，但关于这些因素是否唯一地预测结果，或者是否涉及其他因素(例如知觉和非语言技能)，人们的认识有限。本研究解决了这一问题。方法：收集了一组患有DS的婴儿(n=14)和一组典型发育(TD)婴儿(n=35)的纵向数据，这些数据已被证明可以预测TD婴儿和/或发育迟缓的婴儿的语言。结果：线性回归分析显示，言语分割和发起联合注意是TD组较晚语言的最强预测因素，而非语言心理能力和对联合注意的反应是对DS婴儿较晚语言的最强预测因素。结论：语音分割能力可能不决定DS的语言结果，语言习得可能更多地受到社交和一般认知技能的制约。
Purpose: Children with Down syndrome (DS) typically have marked delays in language development relative to their general cognitive development, with particular difficulties in expressive compared to receptive language. Although early social communication skills, including gestures and joint attention, have been shown to be related to later language outcomes in DS, knowledge is limited as to whether these factors exclusively predict outcomes, or whether other factors (e.g. perceptual and non-verbal skills) are involved. This study addressed this question.Method: Longitudinal data for a group of infants with DS (n = 14) and a group of typically developing (TD) infants (n = 35) were collected on measures that have been shown to predict language in TD infants and/or those with developmental delays. These included: non-verbal mental ability, speech segmentation skills, and early social communication skills (initiating and responding to joint attention, initiating behavioural requests).Results: Linear regression analyses showed that speech segmentation and initiating joint attention were the strongest predictors of later language in the TD group, whereas non-verbal mental ability and responding to joint attention were the strongest predictors of later language for infants with DS.Conclusions: Speech segmentation ability may not determine language outcomes in DS, and language acquisition may be more constrained by social communication and general cognitive skills.