Operational momentum and size ordering in preverbal infants.
Operational momentum and size ordering in preverbal infants.
复制标题
DOI：
10.1007/s00426-016-0750-9
复制
发表时间：
2016-05
期刊：
影响因子：
--
通讯作者：
Bulf H
中科院分区：
文献类型：
--
作者：
Macchi Cassia V;McCrink K;de Hevia MD;Gariboldi V;Bulf H
最近的证据表明，像成人和儿童一样，9个月大的婴儿在非符号算术中表现出一种运算动量（OM）效应，即他们高估加法问题的结果，低估减法问题的结果。在这里，我们提供了第一个证据，证明在排序操作期间，非数值量级（即空间范围）的变换会发生OM。12个月大的婴儿接受了一项顺序任务的测试，在这项任务中，他们检测并表示身体尺寸的上升或下降，然后对表现出较大或较小尺寸的顺序序列做出反应。婴儿对尺寸变化的注视时间较长，而尺寸变化的方向违背了习惯化过程中所经历的操作动量（即上升条件下的序列较小，下降条件下的序列较大）。婴儿时期尺寸排序的势头表明，在生命的第一年，连续的数量在空间上表现出来。
Recent evidence has shown that, like adults and children, 9-month-old infants manifest an operational momentum (OM) effect during non-symbolic arithmetic, whereby they overestimate the outcomes to addition problems, and underestimate the outcomes to subtraction problems. Here we provide the first evidence that OM occurs for transformations of non-numerical magnitudes (i.e., spatial extent) during ordering operations. Twelve-month-old infants were tested in an ordinal task in which they detected and represented ascension or descension in physical size, and then responded to ordinal sequences that exhibited greater or lesser sizes. Infants displayed longer looking time to the size change whose direction violated the operational momentum experienced during habituation (i.e., the smaller sequence in the ascension condition and the larger sequence in the descension condition). The presence of momentum for ordering size during infancy suggests that continuous quantities are represented spatially during the first year of life.