Beyond magnitude: Judging ordinality of symbolic number is unrelated to magnitude comparison and independently relates to individual differences in arithmetic
Beyond magnitude: Judging ordinality of symbolic number is unrelated to magnitude comparison and independently relates to individual differences in arithmetic
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DOI：
10.1016/j.cognition.2016.01.018
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发表时间：
2016-05-01
期刊：
影响因子：
3.4
通讯作者：
Ansari, Daniel
中科院分区：
文献类型：
--
作者：
Goffin, Celia;Ansari, Daniel
在数值认知领域，序数（或数字序列）受到的关注远远少于基数（或集合中的项目数量）。因此，目前尚不清楚由有序性和基数性任务产生的数值效应是否相关，以及它们是否以类似的方式与数学成绩和更多的域通用变量相关。为了回答这些问题，60名成年人完成了顺序性、基数性、视觉空间工作记忆、抑制控制和数学成就任务。基数任务的数值距离效应和序数任务的反向距离效应都是相对可靠的，但彼此之间没有统计学上的显著相关。此外，即使在回归模型中包含了视觉空间工作记忆和抑制控制，距离效应也预测了数学成绩的独立独特方差。这些发现为数字符号的基数和序数加工机制的分离提供了支持，从而突出了序数在符号数字认知中的关键作用。(C) 2016 Elsevier B.V.版权所有
In the field of numerical cognition, ordinality, or the sequence of numerals, has received much less attention than cardinality, or the number of items in a set. Therefore it is unclear whether the numerical effects generated from ordinality and cardinality tasks are associated, and whether they relate to math achievement and more domain-general variables in similar ways. To address these questions, sixty adults completed ordinality, cardinality, visual-spatial working memory, inhibitory control and math achievement tasks. The numerical distance effect from the cardinality task and the reverse distance effect from the ordinality task were both relatively reliable but not statistically significantly associated with one another. Additionally, both distance effects predicted independent unique variance in math scores, even when visual-spatial working memory and inhibitory control were included in the regression model. These findings provide support for dissociation in the mechanisms underlying cardinal and ordinal processing of number symbols and thereby highlight the critical role played by ordinality in symbolic numerical cognition. (C) 2016 Elsevier B.V. All rights reserved.