The development of area discrimination and its implications for number representation in infancy
The development of area discrimination and its implications for number representation in infancy
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DOI：
10.1111/j.1467-7687.2006.00530.x
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发表时间：
2006-11-01
影响因子：
3.7
通讯作者：
Cordes, Sara
中科院分区：
文献类型：
--
作者：
Brannon, Elizabeth M.;Lutz, Donna;Cordes, Sara
本文研究了婴儿对连续刺激变量的能力，以及这种能力与数字表征的关系。我们检查了6个月大的婴儿检测单个元素（Elmo脸）大小差异所需的区域变化。婴儿成功分辨出Elmo面部面积1:4、1:3和1:2的变化，但不能分辨出2:3的变化。此外，新颖性偏好与新区域与熟悉区域的比值差呈线性相关。结果表明，韦伯定律适用于婴儿期的区域区分，并揭示了6个月大的婴儿对数字、时间和区域同样敏感。
This paper investigates the ability of infants to attend to continuous stimulus variables and how this capacity relates to the representation of number. We examined the change in area needed by 6-month-old infants to detect a difference in the size of a single element (Elmo face). Infants successfully discriminated a 1:4, 1:3 and 1:2 change in the area of the Elmo face but failed to discriminate a 2:3 change. In addition, the novelty preference was linearly related to the ratio difference between the novel and familiar area. Results suggest that Weber's Law holds for area discriminations in infancy and also reveal that at 6 months of age infants are equally sensitive to number, time and area.