有和没有持续性语音障碍的学龄儿童的工作记忆
Working memory in school-age children with and without a persistent speech sound disorder.
作者信息
Farquharson Kelly, Hogan Tiffany P, Bernthal John E
机构信息
a Department of Communication Sciences and Disorders , Emerson College , Boston , MA , USA.
b MGH-Institute of Health Professions , Boston , MA , USA , and.
出版信息
Int J Speech Lang Pathol. 2018 Aug;20(4):422-433. doi: 10.1080/17549507.2017.1293159. Epub 2017 Mar 17.
PURPOSE
The aim of this study was to explore the role of working memory processes as a possible cognitive underpinning of persistent speech sound disorders (SSD).
METHOD
Forty school-aged children were enrolled; 20 children with persistent SSD (P-SSD) and 20 typically developing children. Children participated in three working memory tasks - one to target each of the components in Baddeley's working memory model: phonological loop, visual spatial sketchpad and central executive.
RESULT
Children with P-SSD performed poorly only on the phonological loop tasks compared to their typically developing age-matched peers. However, mediation analyses revealed that the relation between working memory and a P-SSD was reliant upon nonverbal intelligence.
CONCLUSION
These results suggest that co-morbid low-average nonverbal intelligence are linked to poor working memory in children with P-SSD. Theoretical and clinical implications are discussed.
目的
本研究旨在探讨工作记忆过程作为持续性语音障碍（SSD）可能的认知基础所起的作用。
方法
招募了40名学龄儿童；20名患有持续性SSD（P-SSD）的儿童和20名发育正常的儿童。儿童参与了三项工作记忆任务——分别针对巴德利工作记忆模型中的每个组成部分：语音回路、视觉空间画板和中央执行系统。
结果
与发育正常、年龄匹配的同龄人相比，患有P-SSD的儿童仅在语音回路任务上表现较差。然而，中介分析表明，工作记忆与P-SSD之间的关系依赖于非言语智力。
结论
这些结果表明，共病的低平均非言语智力与患有P-SSD的儿童工作记忆差有关。讨论了理论和临床意义。
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