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The "number sense" and beyond: Typical and atypical development of numerical representations| old_uid | 9967 |
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| title | The "number sense" and beyond: Typical and atypical development of numerical representations |
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| start_date | 2011/05/13 |
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| schedule | 11h-12h |
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| online | no |
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| summary | Many animal species have evolved a "number sense", that is capacity to estimate the numerosity of objects or events. Numerosity estimation is foundational to mathematical learning in humans and is thought to rely on a non-symbolic system based on logarithmically compressed analog magnitudes. I will show that the resolution of the representation of visual numerosity, or "number acuity", increases throughout childhood and is severely impaired in children with developmental dyscalculia.
I will then discuss the transition from intuitive, logarithmic representations to formally appropriate, linear representations in preschoolers and school-age children, driven by cultural practices with numbers. Finally, I will discuss a neurocomputational account in which sensitivity to visual numerosity emerges through unsupervised learning and numerical representations are subsequently shaped by associative learning of number
symbols |
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| responsibles | Pélissier |
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