ArticleChild development
Evidence for a Low Number Prior in Children's Intuitive Number Sense.
Article in Child development. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Children rely on their Approximate Number System to intuitively perceive number. Such adaptations often exhibit sensitivity to real-world statistics. This study investigates a potential manifestation of the ANS's sensitivity to real-world statistics: a negative power-law distribution of objects in natural scenes should be reflected in children's expectations about number, or in more Bayesian terms, a low number prior distribution. Five- to eight-year-old children (n = 80; 39 girls, 41 boys) and adults (n = 20) in 2022 completed a number discrimination task in which one side was corrupted by perceptual noise. Children and adults demonstrate a low number prior. No age-related differences were observed, suggesting that the prior is formed by age five and does not strengthen with age.
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