Integers do not automatically activate their quantity representation.
Integers do not automatically activate their quantity representation.
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DOI：
10.3758/pbr.16.2.332
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发表时间：
2009-04
影响因子：
3.5
通讯作者：
Cohen DJ
中科院分区：
文献类型：
--
作者：
Cohen DJ
研究人员普遍得出结论，整数会自动激活它们所代表的量，而这个量主导着反应。我用两个相同/不同的数字实验对这一假设进行了强有力的检验。在每次实验中，我向参与者呈现一个介于1和9之间的整数，并要求他或她识别该符号是否为5。如果数量信息主导了反应，那么参与者的反应时间应该是目标和分心物之间的数字距离的函数。如果数量信息没有被激活，那么整数只是一个形状，参与者的RT应该是目标和分心物的物理相似性的函数。实验1和实验2的数据表明，数量信息不起控制作用，物理相似性是主要控制因素。这些发现表明，整数保持了一定程度的独立于其数量表示法。
Researchers have generally come to the conclusion that integers automatically activate the quantity they symbolize and this quantity dominates responding. I present a strong test of this hypothesis with two numerical same/different experiments. On each trial, I present the participant an integer between 1 and 9 and ask him or her to identify whether that symbol is a 5. If quantity information dominates responding then participants’ RT should be a function of the numerical distance between the target and the distractor. If quantity information is not activated, then the integer is merely a shape, and participants’ RT should be a function of the physical similarity of the target and the distractor. The data from Experiments 1 and 2 demonstrate that quantity information exerts no control and physical similarity is the primary controlling factor. These findings demonstrate that integers maintain a level of independence from their quantity representations.