Number magnitude potentiates action judgements
Number magnitude potentiates action judgements
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DOI：
10.1007/s00221-007-0870-y
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发表时间：
2007-07-01
影响因子：
2
通讯作者：
Pesenti, Mauro
中科院分区：
文献类型：
--
作者：
Badets, Arnaud;Andres, Michael;Pesenti, Mauro
运动动作可以通过对物体及其特征的感知来模拟和生成。具有给定动作能力的对象的这种功能特征被称为可供性。在这里，我们报告之间的相互作用的感知的启示和处理的数值大小，我们表明，数值信息校准的判断，即使没有实际的行动是必需的。在实验1中，参与者必须判断他们是否能够在拇指和食指之间纵向抓住一根棍子。棒的展示之前是一个数字或非数字符号。当一个小数目之前的杆，参与者高估了他们的把握;相反，当大量的杆之前，他们低估了他们的把握。在实验2中，参与者被要求判断两个连续的杆是否具有相同的长度，这一判断不涉及任何抓握。数字启动对这种判断没有影响，表明幅度/示能相互作用不是由于简单的感知效应。最后，实验3表明，相互作用不存在与非数字有序序列，从而消除序列顺序作为一个潜在的混淆变量。
Motor actions can be simulated and generated through the perception of objects and their characteristics. Such functional characteristics of objects with given action capabilities are called affordances. Here we report an interaction between the perception of affordances and the processing of numerical magnitude, and we show that the numerical information calibrates the judgement of action even when no actual action is required. In Experiment 1, participants had to judge whether they would be able to grasp a rod lengthways between their thumb and index finger. The presentation of the rod was preceded by a number or a non-numerical symbol. When a small number preceded the rod, participants overestimated their grasp; conversely, when a large number preceded the rods, they underestimated their grasp. In Experiment 2, participants were requested to judge if two successive rods had the same length, a judgement that did not involve any grasping. The numerical primes had no effect on this judgement, showing that the magnitude/affordance interaction was not due to a simple perceptual effect. Finally, Experiment 3 showed that the interaction was not present with a non-numerical ordered sequence, thereby eliminating sequence order as a potentially confounding variable.