On the Difference Between Numerosity Processing and Number Processing
On the Difference Between Numerosity Processing and Number Processing
复制标题
论数值处理与数字处理的区别
DOI：
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发表时间：
2018
影响因子：
3.8
通讯作者：
E. Kroesbergen
中科院分区：
文献类型：
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作者：
Anne H. Van Hoogmoed;E. Kroesbergen
近20年来，关于非符号数字加工的ANS理论和关于符号数字加工的ANS映射解释分别成为数字加工和数字加工的最流行理论。最近，ANS理论和ANS映射帐户都受到了质疑。在目前的研究中，我们检查了两个主要假设的ANS理论和ANS映射帐户。在四个相同-不同的匹配样本任务中测量了21名参与者的ERP，这些任务涉及非符号刺激，符号刺激或符号和非符号刺激的组合（即，映射任务）。我们严格控制了非符号刺激中的视觉特征。根据ANS理论，人们预计非符号任务中的数字能力会出现早期距离效应。然而，结果表明，没有距离效应的数量。当分析基于视觉特性的刺激时，发现了凸船体对向区域的早期距离效应，这一发现与最近的主张一致，即非符号刺激的加工可能依赖于视觉特性的加工，而不仅仅是数字性。关于符号数字的处理，ANS映射帐户指出，符号数字在进一步处理之前首先映射到其非符号表示，因为非符号表示是处理符号数字的基础。如果非符号格式是处理的基本格式，那么人们会期望非符号数字的处理在纯粹的非符号任务和映射任务之间不会有差异，从而导致两种任务的ERP波形相似。我们的结果表明，非符号数字的处理在任务之间确实存在差异，这表明非符号数字的处理取决于任务格式。这提供了针对ANS映射帐户的证据。讨论了非符号数字和符号数字处理的替代理论。
The ANS theory on the processing of non-symbolic numerosities and the ANS mapping account on the processing of symbolic numbers have been the most popular theories on numerosity and number processing, respectively, in the last 20 years. Recently, both the ANS theory and the ANS mapping account have been questioned. In the current study, we examined two main assumptions of both the ANS theory and the ANS mapping account. ERPs were measured in 21 participants during four same-different match-to-sample tasks, involving non-symbolic stimuli, symbolic stimuli, or a combination of symbolic and non-symbolic stimuli (i.e., mapping tasks). We strictly controlled the visual features in the non-symbolic stimuli. Based on the ANS theory, one would expect an early distance effect for numerosity in the non-symbolic task. However, the results show no distance effect for numerosity. When analyzing the stimuli based on visual properties, an early distance effect for area subtended by the convex hull was found. This finding is in line with recent claims that the processing of non-symbolic stimuli may be dependent on the processing of visual properties instead of on numerosity (only). With regards to the processing of symbolic numbers, the ANS mapping account states that symbolic numbers are first mapped onto their non-symbolic representations before further processing, since the non-symbolic representation is at the basis of processing the symbolic number. If the non-symbolic format is the basic format of processing, one would expect that the processing of non-symbolic numerosities would not differ between purely non-symbolic tasks and mapping tasks, resulting in similar ERP waveforms for both tasks. Our results show that the processing of non-symbolic numerosities does differ between the tasks, indicating that processing of non-symbolic number is dependent on task format. This provides evidence against the ANS mapping account. Alternative theories for both the processing of non-symbolic numerosities and symbolic numbers are discussed.