No intrinsic number bias: Evaluating the role of perceptual discriminability in magnitude categorization,Developmental Science

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No intrinsic number bias: Evaluating the role of perceptual discriminability in magnitude categorization
Developmental Science ( IF 3.1 ) Pub Date : 2022-07-19 , DOI: 10.1111/desc.13305
Lauren S Aulet ₁ , Stella F Lourenco ₂

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Accumulating evidence suggests that there is a spontaneous preference for numerical, compared to non-numerical (e.g., cumulative surface area), information. However, given a paucity of research on the perception of non-numerical magnitudes, it is unclear whether this preference reflects a specific bias towards number, or a general bias towards the more perceptually discriminable dimension (i.e., number). Here, we found that when the number and area of visual dot displays were matched in mathematical ratio, number was more perceptually discriminable than area in both adults and children. Moreover, both adults and children preferentially categorized these ratio-matched stimuli based on number, consistent with previous work. However, when number and area were matched in perceptual discriminability, a different pattern of results emerged. In particular, children preferentially categorized stimuli based on area, suggesting that children's previously observed number bias may be due to a mismatch in the perceptual discriminability of number and area, not an intrinsic salience of number. Interestingly, adults continued to categorize the displays on the basis of number. Altogether, these findings suggest a dominant role for area during childhood, refuting the claim that number is inherently and uniquely salient. Yet they also reveal an increased salience of number that emerges over development. Potential explanations for this developmental shift are discussed.

中文翻译：

没有内在的数字偏差：评估感知辨别力在幅度分类中的作用

越来越多的证据表明，与非数字（例如，累积表面积）信息相比，人们自发地偏爱数字信息。然而，鉴于对非数值量级感知的研究很少，尚不清楚这种偏好是否反映了对数字的特定偏见，或对更可感知的维度（即数字）的普遍偏见。在这里，我们发现当视觉点显示的数量和面积以数学比例匹配时，无论是成人还是儿童，数字都比面积更容易在感知上辨别。此外，成人和儿童都优先根据数量对这些比例匹配的刺激进行分类，这与之前的工作一致。然而，当数量和面积在感知辨别能力上相匹配时，就会出现不同的结果模式。特别是，儿童优先根据区域对刺激进行分类，这表明儿童先前观察到的数字偏差可能是由于数字和区域的感知辨别能力不匹配，而不是数字的内在显着性。有趣的是，成年人继续根据数量对展示进行分类。总而言之，这些发现表明区域在童年时期起着主导作用，驳斥了数字具有内在和独特显着性的说法。然而，它们也揭示了在发展过程中出现的数量的增加。讨论了这种发展转变的可能解释。不是数字的内在显着性。有趣的是，成年人继续根据数量对展示进行分类。总而言之，这些发现表明区域在童年时期起着主导作用，驳斥了数字具有内在和独特显着性的说法。然而，它们也揭示了在发展过程中出现的数量的增加。讨论了这种发展转变的可能解释。不是数字的内在显着性。有趣的是，成年人继续根据数量对展示进行分类。总而言之，这些发现表明区域在童年时期起着主导作用，驳斥了数字具有内在和独特显着性的说法。然而，它们也揭示了在发展过程中出现的数量的增加。讨论了这种发展转变的可能解释。

更新日期：2022-07-19

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