Department of Communication Sciences and Disorders, University of Wisconsin-Madison.
Am J Speech Lang Pathol. 2018 Aug 6;27(3):1018-1029. doi: 10.1044/2018_AJSLP-17-0138.
This study compared gesture use in young children with Down syndrome (DS) and typical development (TD) as well as how mothers respond to child gestures based on child age and diagnosis.
Twenty-two mother-child dyads with DS and 22 mother-child dyads with TD participated. The child participants were between 22 and 63 months and were matched on chronological age. We coded child gesture use and whether mothers recoded child gestures (i.e., provided a verbal translation) during naturalistic interactions.
The children with DS used more gestures than peers with TD. After controlling for expressive language ability, the two groups were not significantly different on child gesture use. Regardless of child diagnosis, mothers recoded approximately the same percentage of child gestures. There was a significant interaction between child diagnosis and child age when predicting the percentage of maternal gesture recodes; mothers of children with DS did not demonstrate differences in the percentage of maternal gesture recodes based on child age, but there was a negative relationship between the percentage of maternal gesture recodes and child age for the children with TD.
Young children with DS gesture more than chronological age-matched children with TD, therefore providing numerous opportunities for caregivers to recode child gestures and support language development. Early intervention should focus on increasing parent responsiveness to child gestures earlier in life in order to provide additional word-learning opportunities for children with DS.
本研究比较了唐氏综合征(DS)和典型发育(TD)儿童的手势使用情况,以及母亲根据儿童年龄和诊断对手势的反应。
共有 22 对 DS 儿童和 22 对 TD 儿童参与。受试儿童年龄在 22 至 63 个月之间,按实际年龄匹配。我们对儿童的手势使用情况以及母亲在自然互动中是否对儿童手势进行重述(即提供口头翻译)进行了编码。
DS 组儿童比 TD 组儿童使用更多的手势。在控制了表达性语言能力后,两组儿童在手势使用上没有显著差异。无论儿童的诊断如何,母亲对儿童手势的重述比例大致相同。在预测母亲手势重述比例时,儿童诊断和年龄之间存在显著的交互作用;DS 儿童的母亲不会根据儿童年龄的不同而改变其手势重述的比例,但 TD 儿童的手势重述比例与儿童年龄呈负相关。
与按实际年龄匹配的 TD 儿童相比,DS 儿童的手势更多,因此为照顾者提供了许多重述儿童手势的机会,从而支持语言发展。早期干预应重点关注增加父母对儿童手势的反应能力,以便为 DS 儿童提供更多的单词学习机会。