Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan.
Child Development Center PALETTE, Social Welfare Organization SUZURAN NO KAI, Sagamihara, Japan.
J Intellect Disabil Res. 2019 Dec;63(12):1428-1440. doi: 10.1111/jir.12684. Epub 2019 Sep 8.
Children with intellectual disabilities (IDs) have a severe delay in syntactic development compared with other language abilities. This study investigated conditions of syntactic development in native Japanese-speaking children with ID.
Children with ID [N = 51; 18 autism spectrum disorders (ASD), 18 Down syndrome (DS) and 15 ID without ASD and DS] were compared with typically developing children (N = 78) with the same mental age (MA). The development of syntax in spoken language was examined by receptive and production tasks.
The development of syntax in children with ID was significantly delayed than in typically developing children with the same MA. However, when reaching the MA of 7-9, syntax abilities started to develop remarkably. Moreover, children with ASD had significant difficulties in acquiring passive voice, whereas children with DS showed a significant delay in syntactic development.
The development of syntax in children with ID might be affected by MA and the type of disability. Moreover, it is necessary to exceed an MA of 7-9 years for children with ID to develop syntax abilities.
与其他语言能力相比，智力障碍（ID）儿童的句法发展严重滞后。本研究调查了母语为日语的 ID 儿童的句法发展情况。
将 51 名 ID 儿童（18 名自闭症谱系障碍（ASD），18 名唐氏综合征（DS）和 15 名无 ASD 和 DS 的 ID）与具有相同心理年龄（MA）的正常发育儿童（N=78）进行比较。通过接受性和生成性任务来检查口语中语法的发展。
与具有相同 MA 的正常发育儿童相比，ID 儿童的语法发展明显延迟。然而，当达到 7-9 岁的 MA 时，语法能力开始显著发展。此外，ASD 儿童在习得被动语态方面存在显著困难，而 DS 儿童在句法发展方面存在显著延迟。
ID 儿童的语法发展可能受到 MA 和残疾类型的影响。此外，ID 儿童需要超过 7-9 岁的 MA 才能发展语法能力。
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