The role of numerical and non-numerical cues in nonsymbolic number processing: Evidence from the line bisection task
The role of numerical and non-numerical cues in nonsymbolic number processing: Evidence from the line bisection task
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DOI：
10.1080/17470218.2014.994537
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发表时间：
2015-09-02
影响因子：
1.7
通讯作者：
Bull, Rebecca
中科院分区：
文献类型：
--
作者：
Cleland, Alexandra A.;Bull, Rebecca
在线平分任务中，成人和儿童向两个非符号数值中较大的数值平分[de Hevia, M. D., & Spelke, E. S. (2009)。成人和幼儿对数字和空间的自发映射。认知，110, 198-207。 doi:10.1016/j.cognition.2008.11.003]。然而，目前尚不清楚这种效应是由数字本身驱动还是由视觉线索（例如封闭区域）驱动[Gebuis, T., & Gevers, W. (2011)。数字和空间：确实是一种认知错觉！对 de Hevia 和 Spelke (2009) 的答复。认知，121, 248-252。 doi:10.1016/j.cognition.2010.09.008]。此外，这种效果仅在两个和九个项目的侧翼显示中得到证明。在这里，我们报告了三项研究，这些研究检验了这种空间偏差效应是否发生在一系列绝对和比率数值差异中；特别是，我们检查了当两个侧翼都在子位调整范围之外时是否会发生偏差。此外，我们还操纵刺激的覆盖区域和总表面积来评估视觉线索的影响。我们发现，当未控制所对面积时，一系列侧翼数值和比例为 3:5 和 5:6 时会出现空间偏差效应（实验 1）。然而，当包围面积和总表面积保持不变时，偏置效应就会逆转，参与者会用更少的物品平分到侧翼（实验 2）。此外，当侧翼相同时，参与者将其平分到具有更大包覆面积或更大总表面积的侧翼（实验 2 和 3）。在这些研究的基础上，我们得出结论，非符号数值的空间偏差效应主要是由视觉线索驱动的。
In line bisection tasks, adults and children bisect towards the numerically larger of two nonsymbolic numerosities [de Hevia, M. D., & Spelke, E. S. (2009). Spontaneous mapping of number and space in adults and young children. Cognition, 110, 198-207. doi:10.1016/j.cognition.2008.11.003]. However, it is not clear whether this effect is driven by number itself or rather by visual cues such as subtended area [Gebuis, T., & Gevers, W. (2011). Numbers and space: Indeed a cognitive illusion! A reply to de Hevia and Spelke (2009). Cognition, 121, 248-252. doi:10.1016/j.cognition.2010.09.008]. Furthermore, this effect has only been demonstrated with flanking displays of two and nine items. Here, we report three studies that examined whether this spatial bias effect occurs across a range of absolute and ratio numerosity differences; in particular, we examined whether the bias would occur when both flankers were outside the subitizing range. Additionally, we manipulated the subtended area of the stimulus and the aggregate surface area to assess the influence of visual cues. We found that the spatial bias effect occurred for a range of flanking numerosities and for ratios of 3:5 and 5:6 when subtended area was not controlled (Experiment 1). However, when subtended area and aggregate surface area were held constant, the biasing effect was reversed such that participants bisected towards the flanker with fewer items (Experiment 2). Moreover, when flankers were identical, participants bisected towards the flanker with larger subtended area or larger aggregate surface area (Experiments 2 and 3). On the basis of these studies, we conclude that the spatial bias effect for nonsymbolic numerosities is primarily driven by visual cues.