Problem solving in infancy: The emergence of an action plan
Problem solving in infancy: The emergence of an action plan
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DOI：
10.1037/0012-1649.35.4.1091
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发表时间：
1999-07-01
影响因子：
4
通讯作者：
Collard, RR
中科院分区：
文献类型：
--
作者：
McCarty, ME;Clifton, RK;Collard, RR
幼儿的策略进行了评估，因为他们抓住和使用的对象。将装有食物和玩具的勺子放在手柄上，交给9个月、14个月和19个月大的儿童，手柄交替地向左和向右。交替的方向揭示了儿童用于抓握物品的策略。年幼的孩子通常用他们喜欢的手去拿，而不考虑物品的方向。在勺子的例子中，这种策略产生了笨拙的抓握，后来不得不纠正。年龄较大的儿童预见到了这个问题，交替使用手，并实现了有效的径向抓握（即，用拇指根部朝食物或玩具端抓握手柄）。行动选择策略的发展模型，提出了说明规划小于2岁的儿童。
Young children's strategies were evaluated as they grasped and used objects. Spoons containing food and toys mounted on handles were presented to 9-, 14-, and 19-month-old children with the handle alternately oriented to the left and right. The alternating orientations revealed strategies that the children used for grasping items. Younger children usually reached with their preferred hand, disregarding the item's orientation. In the case of the spoon, this strategy produced awkward grasps that had to be corrected later. Older children anticipated the problem, alternated the hand used, and achieved an efficient radial grip (i.e., handle grasped with base of thumb toward food or toy end) for both orientations. A model of the development of action-selection strategies is proposed to illustrate planning in children younger than 2 years.