Nothing to it: precursors to a zero concept in preschoolers.

Nothing to it: precursors to a zero concept in preschoolers.
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DOI:
10.1016/j.beproc.2012.11.001
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发表时间:
2013-02
影响因子:
1.3
通讯作者:
Brannon, Elizabeth M.
Brannon, Elizabeth M.
中科院分区:
生物学4区
文献类型:
--
作者:
Merritt, Dustin J.;Brannon, Elizabeth M.

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幼儿在发展符号零的概念之前,是否理解空集的数值?空集可以表示为心理量吗?为了研究这些问题,我们测试了4岁的儿童和成人的数字排序任务,其中的目标是选择两个刺激,在上升的数字顺序偶尔空集刺激。儿童和成人都表现出距离效应的空集。无法排序零符号的儿童(例如,0 < 1),但谁成功地订购了可数整数(例如,2 < 4)在空集上表现出距离效应。这些结果表明,空集表示在相同的数值连续非空集和儿童表示空集的数字之前,理解符号零。
Do young children understand the numerical value of empty sets prior to developing a concept of symbolic zero? Are empty sets represented as mental magnitudes? In order to investigate these questions, we tested 4-year old children and adults with a numerical ordering task in which the goal was to select two stimuli in ascending numerical order with occasional empty set stimuli. Both children and adults showed distance effects for empty sets.. Children who were unable to order the symbol zero (e.g., 0 < 1), but who successfully ordered countable integers (e.g., 2 < 4) nevertheless showed distance effects with empty sets. These results suggest that empty sets are represented on the same numerical continuum as non-empty sets and that children represent empty sets numerically prior to understanding symbolic zero.
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