Dyspraxia, motor function and visual-motor integration in autism
Dyspraxia, motor function and visual-motor integration in autism
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DOI：
10.1016/j.bbr.2014.04.011
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发表时间：
2014-08-01
影响因子：
2.7
通讯作者：
Trauner, D.
中科院分区：
文献类型：
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作者：
Miller, M.;Chukoskie, L.;Trauner, D.
该项目评估了高功能学龄自闭症儿童的运动障碍，重点是概念实践。我们研究了特定的潜在运动功能，包括眼球运动与概念性运动障碍（熟练动作的顺序）的关联，以及视觉运动整合在运动障碍中的可能作用。我们发现，与智商、性别和年龄匹配的正常发育儿童相比，自闭症儿童在以下方面的表现明显较差：概念和颊面实践;广泛的运动测试，包括简单运动技能的测量，扫视眼球运动和运动协调的时间和准确性;以及视觉-运动整合测试。自闭症儿童个体的损伤在本质上是异质的，尽管当我们将实践数据作为代表运动计时的定性测量的函数进行检查时，我们发现运动计时较差的儿童在所有实践类别中表现更差，并且眼球运动更慢，更不准确，而那些有规律计时的儿童在这些相同的任务中表现得和典型的儿童一样好。我们的数据提供的证据表明，运动功能和视觉运动整合有助于运动障碍。我们认为，自闭症运动障碍涉及小脑机制的运动控制和整合这些机制与大脑皮层网络牵连在实践。(C)2014爱思唯尔有限公司版权所有。
This project assessed dyspraxia in high-functioning school aged children with autism with a focus on Ideational Praxis. We examined the association of specific underlying motor function including eye movement with ideational dyspraxia (sequences of skilled movements) as well as the possible role of visual-motor integration in dyspraxia. We found that compared to IQ-, sex- and age-matched typically developing children, the children with autism performed significantly worse on: Ideational and Buccofacial praxis; a broad range of motor tests, including measures of simple motor skill, timing and accuracy of saccadic eye movements and motor coordination; and tests of visual-motor integration. Impairments in individual children with autism were heterogeneous in nature, although when we examined the praxis data as a function of a qualitative measure representing motor timing, we found that children with poor motor timing performed worse on all praxis categories and had slower and less accurate eye movements while those with regular timing performed as well as typical children on those same tasks. Our data provide evidence that both motor function and visual-motor integration contribute to dyspraxia. We suggest that dyspraxia in autism involves cerebellar mechanisms of movement control and the integration of these mechanisms with cortical networks implicated in praxis. (C) 2014 Elsevier B.V. All rights reserved.