Sobel Kenith V, Puri Amrita M, Faulkenberry Thomas J, Dague Taylor D
Department of Psychology and Counseling.
Department of Psychology, Illinois State University.
J Exp Psychol Hum Percept Perform. 2017 Mar;43(3):444-453. doi: 10.1037/xhp0000323. Epub 2016 Nov 28.
The size congruity effect refers to the interaction between numerical magnitude and physical digit size in a symbolic comparison task. Though this effect is well established in the typical 2-item scenario, the mechanisms at the root of the interference remain unclear. Two competing explanations have emerged in the literature: an early interaction model and a late interaction model. In the present study, we used visual conjunction search to test competing predictions from these 2 models. Participants searched for targets that were defined by a conjunction of physical and numerical size. Some distractors shared the target's physical size, and the remaining distractors shared the target's numerical size. We held the total number of search items fixed and manipulated the ratio of the 2 distractor set sizes. The results from 3 experiments converge on the conclusion that numerical magnitude is not a guiding feature for visual search, and that physical and numerical magnitude are processed independently, which supports a late interaction model of the size congruity effect. (PsycINFO Database Record
大小一致性效应指的是在符号比较任务中数字大小与物理数字尺寸之间的相互作用。尽管这种效应在典型的两项情景中已得到充分证实，但干扰背后的机制仍不清楚。文献中出现了两种相互竞争的解释：早期相互作用模型和晚期相互作用模型。在本研究中，我们使用视觉联合搜索来检验这两种模型的相互竞争的预测。参与者搜索由物理和数字大小联合定义的目标。一些干扰项与目标的物理大小相同，其余干扰项与目标的数字大小相同。我们固定搜索项目的总数，并操纵两个干扰项集合大小的比例。来自3个实验的结果都得出这样的结论：数字大小不是视觉搜索的引导特征，物理和数字大小是独立处理的，这支持了大小一致性效应的晚期相互作用模型。（PsycINFO数据库记录）
