Cutini S, Aleotti S, Di Bono M G, Priftis K
Department of Developmental Psychology, University of Padova, Via Venezia 8, 35131, Padova, Italy.
Department of General Psychology, University of Padova, Padova, Italy.
Atten Percept Psychophys. 2019 Aug;81(6):1781-1788. doi: 10.3758/s13414-019-01768-7.
The Spatial-Numerical Association of Response Codes (SNARC) effect has been observed with different stimuli, beside Arabic numerals, such as written/spoken number words, sequences of acoustic stimuli, and groups of elements. Here we investigated how the enumeration of sets of elements can be affected by the spatial configuration of the displayed stimuli with regard to the emergence of the SNARC effect. To this aim, we asked participants to perform a magnitude comparison task with structured (i.e., dice-like) and unstructured (i.e., random) patterns of rectangles. With this manipulation, we sought to explore the presence of the SNARC effect in relation to the structure of the displayed visual stimuli. The results showed that the spatial arrangement of rectangles does not impact visual enumeration processes leading to the SNARC effect. An unexpected reversal of the size effect for unstructured stimuli was also observed. We speculate that the presence of a similar SNARC effect, both with structured and unstructured stimuli, indicates the existence of a common access to the mental number line.
除阿拉伯数字外，在不同刺激（如书面/口头数字单词、声学刺激序列和元素组）下均观察到了反应编码的空间数字关联（SNARC）效应。在此，我们研究了关于SNARC效应的出现，所显示刺激的空间配置如何影响元素集的计数。为此，我们要求参与者对结构化（即类似骰子）和非结构化（即随机）的矩形图案执行大小比较任务。通过这种操作，我们试图探究与所显示视觉刺激的结构相关的SNARC效应的存在情况。结果表明，矩形的空间排列不会影响导致SNARC效应的视觉计数过程。还观察到非结构化刺激的大小效应出现了意外的反转。我们推测，结构化和非结构化刺激下均存在类似的SNARC效应，这表明存在通向心理数字线的共同通路。
