Behavioral and Neural Basis of Number Sense in Infancy  

Oleh:

Libertus, Melissa E. ; Brannon, Elizabeth M.

Jenis: Article from Journal - e-Journal
Dalam koleksi: Current Directions in Psychological Science vol. 18 no. 06 (Dec. 2009), page 346-351.
Topik: Numerical Cognition; Number Sense; Cognitive Development; Weber’s Law; Intraparietal Sulcus
Fulltext: 09. Behavioral and Neural Basis of Number Sense in Infancy.pdf (197.84KB)

Isi artikel

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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