Pinhas Michal, Shaki Samuel, Fischer Martin H
Department of Behavioral Sciences, Ariel University, Ariel, 40700, Israel,
Psychon Bull Rev. 2015 Aug;22(4):993-1000. doi: 10.3758/s13423-014-0786-z.
Number processing evokes spatial biases, both when dealing with single digits and in more complex mental calculations. Here we investigated whether these two biases have a common origin, by examining their flexibility. Participants pointed to the locations of arithmetic results on a visually presented line with an inverted, right-to-left number arrangement. We found directionally opposite spatial biases for mental arithmetic and for a parity task administered both before and after the arithmetic task. We discuss implications of this dissociation in our results for the task-dependent cognitive representation of numbers.
数字处理会引发空间偏向，无论是处理单个数字时还是在更复杂的 mental calculations 中。在这里，我们通过检查这两种偏向的灵活性来研究它们是否有共同的起源。参与者在一条视觉呈现的线上指出算术结果的位置，这条线的数字排列是倒置的、从右到左的。我们发现，在算术任务以及算术任务前后进行的奇偶任务中，存在方向相反的空间偏向。我们讨论了结果中这种分离对于数字的任务依赖型认知表征的意义。
