Alloway Tracy Packiam
Department of Psychology, University of Durham, Science Laboratories, South Road, Durham DH1 3LE, UK.
J Exp Child Psychol. 2007 Jan;96(1):20-36. doi: 10.1016/j.jecp.2006.07.002. Epub 2006 Sep 29.
The aim of the present study was investigate the relationship between working memory and reading and mathematical skills in 55 children diagnosed with developmental coordination disorder (DCD). The findings indicate a pervasive memory deficit in all memory measures. In particular, deficits observed in visuospatial short-term and working memory tasks were significantly worse than in the verbal short-term memory ones. On the basis of these deficits, the sample was divided into high and low visuospatial memory ability groups. The low visuospatial memory group performed significantly worse on the attainment measures compared to the high visuospatial memory group, even when the contribution of IQ was taken into account. When the sample was divided into high and low verbal working memory ability groups, verbal working memory skills made a unique contribution to attainment only when verbal IQ was taken into account, but not when performance IQ was statistically controlled. It is possible that the processing demands of the working memory tasks together with the active motor component reflected in the visuospatial memory tasks and performance IQ subtest both play a crucial role in learning in children with DCD.
本研究的目的是调查55名被诊断为发育性协调障碍(DCD)的儿童的工作记忆与阅读及数学技能之间的关系。研究结果表明,在所有记忆测量中均存在普遍的记忆缺陷。特别是,在视觉空间短期和工作记忆任务中观察到的缺陷明显比言语短期记忆任务中的更严重。基于这些缺陷,样本被分为高视觉空间记忆能力组和低视觉空间记忆能力组。即使考虑到智商的影响,低视觉空间记忆组在学业成就测量方面的表现也显著低于高视觉空间记忆组。当样本被分为高言语工作记忆能力组和低言语工作记忆能力组时,只有在考虑言语智商时,言语工作记忆技能才对学业成就有独特的贡献,而在对操作智商进行统计控制时则不然。工作记忆任务的处理需求以及视觉空间记忆任务和操作智商子测试中反映的主动运动成分可能在DCD儿童的学习中都起着关键作用。
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