Movement planning reflects skill level and age changes in toddlers.
Movement planning reflects skill level and age changes in toddlers.
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运动计划反映了幼儿的技能水平和年龄变化。
DOI：
10.1111/j.1467-8624.2010.01514.x
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发表时间：
2010
影响因子：
4.6
通讯作者：
vonHofsten,Claes
中科院分区：
文献类型：
--
作者：
Chen,Yu-ping;Keen,Rachel;Rosander,Kerstin;vonHofsten,Claes
儿童伸手的运动学测量被发现反映了在计划未来行动的技能水平上的稳定差异。35名幼儿（18-21个月）参与了构建积木塔（精确任务）和将积木放入一个开放的容器（不精确任务）。一年后，对16名儿童进行了同样的测试。与不精确的任务相比，在塔任务中，手接近拾取块时的减速时间更长，这表明有第二次运动的计划。能够建造高塔的熟练幼儿在放置积木时比建造低塔的幼儿有更长的减速阶段。一年后，当所有的孩子都能建高塔时，各组之间的运动差异仍然存在。
Kinematic measures of children’s reaching were found to reflect stable differences in skill level for planning for future actions. Thirty‐five toddlers (18–21 months) were engaged in building block towers (precise task) and in placing blocks into an open container (imprecise task). Sixteen children were retested on the same tasks a year later. Longer deceleration as the hand approached the block for pickup was found in the tower task compared with the imprecise task, indicating planning for the second movement. More skillful toddlers who could build high towers had a longer deceleration phase when placing blocks on the tower than toddlers who built low towers. Kinematic differences between the groups remained a year later when all children could build high towers.
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