Behavioral and Neural Basis of Number Sense in Infancy.

Behavioral and Neural Basis of Number Sense in Infancy.
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DOI:
10.1111/j.1467-8721.2009.01665.x
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发表时间:
2009-12-01
影响因子:
7.2
通讯作者:
Brannon EM
Brannon EM
中科院分区:
心理学1区
文献类型:
--
作者:
Libertus ME;Brannon EM

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成年人类和非人类动物的近似数字辨别力受韦伯定律(Weber's Law)支配:数值之间的比率决定了辨别力。在这里,我们回顾了最近的证据,从行为和神经影像学研究表明,在人类婴儿期的数感共享相同的标志性特征的韦伯定律,并可能依赖于相同的神经基板,以前发现在成人,儿童和非人类动物。这些发现支持个体发育和系统发育的连续性在数量意义上的概念。这里描述的新方法可能有助于揭示婴儿早期的数感如何支持成熟数感的发展。此外,他们可能有助于理解儿童如何学习映射非符号的数字表示的符号数提供依赖的措施,捕捉个人的差异。
Approximate number discrimination in adult human and nonhuman animals is governed by Weber’s Law: The ratio between the values determines discriminability. Here, we review recent evidence from behavioral and neuroimaging studies that suggests that number sense in human infancy shares the same hallmark feature of Weber’s Law and may rely on the same neural substrates as previously found in adults, children, and nonhuman animals. These findings support the notion of ontogenetic and phylogenetic continuity in number sense. New methods described here may help uncover how infants’ early number sense supports the development of a mature number sense. Moreover, they may aid in understanding how children learn to map nonsymbolic number representations onto symbols for number by providing dependent measures that capture individual variability.
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