Semantic and phonological fluency in children with Down syndrome: Atypical organization of language or less efficient retrieval strategies?
Semantic and phonological fluency in children with Down syndrome: Atypical organization of language or less efficient retrieval strategies?
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DOI：
10.1080/02643290802274064
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发表时间：
2008-01-01
影响因子：
3.4
通讯作者：
Snowling, Margaret J.
中科院分区：
文献类型：
--
作者：
Nash, Hannah M.;Snowling, Margaret J.
本研究采用言语流畅性测验研究了唐氏综合征(DS)儿童和典型发育儿童在接受词汇年龄成对匹配的情况下语义和语音表征的组织结构。在语义和语音任务中，DS组的生产率都显著降低。然而，与集群大小相反，集群数量的群体差异表明，这可能反映了效率较低的检索策略，而不是语言表示的组织上的差异。总而言之，这些发现指向的是唐氏综合症的执行缺陷，而不是语言过程的异常。
In this study the verbal fluency procedure was used to investigate the organization of semantic and phonological representations in children with Down syndrome (DS) and typically developing children, matched pairwise for receptive vocabulary age. Productivity was found to be significantly reduced in the DS group in both the semantic and the phonological tasks. However, group differences in the number of clusters as opposed to cluster size suggest that this may reflect less efficient retrieval strategies rather than differences in the organization of linguistic representations. Together the findings point to executive deficits in Down syndrome rather than deviant language processes.