Mix Kelly S
College of Education, Michigan State University, East Lansing, MI 48824, USA.
J Exp Child Psychol. 2009 Apr;102(4):427-44. doi: 10.1016/j.jecp.2008.11.003. Epub 2009 Jan 14.
This article describes the development of number concepts between infancy and early childhood. It is based on a diary study that tracked number word use in a child from 12 to 38 months of age. Number words appeared early in the child's vocabulary, but accurate reference to specific numerosities evolved gradually over the entire 27-month period. Reliable performance on standardized number and counting tasks lagged behind accurate number use in informal settings by many months. Although there was evidence that this child labeled mentally represented sets, these instances comprised a very small proportion of the total sample and were usually references to anticipated sets rather than remembered sets.
本文描述了婴儿期到幼儿期数字概念的发展。它基于一项日记研究，该研究追踪了一名12至38个月大儿童数字词汇的使用情况。数字词汇在儿童词汇中出现得较早，但对特定数量的准确指代在整个27个月期间逐渐发展。标准化数字和计数任务的可靠表现比在非正式场合准确使用数字落后了许多个月。虽然有证据表明这个孩子对心理表征的集合进行了标记，但这些例子在总样本中所占比例非常小，而且通常是对预期集合的指代，而非记忆集合的指代。
