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Article Dans Une Revue Brain Sciences Année : 2022

Electrophysiological Evidence for A Number–Action Mapping in Infancy

Résumé

In the last decades, a growing body of literature has focused on the link between number and action. Many studies conducted on adult participants have provided evidence for a bidirectional influence between numerosity processing and grasping or reaching actions. However, it is not yet clear whether this link is functional in early infancy. Here, we used the event-related potential (ERP) technique to record electrical activity of the brain in response to number-hand pairings. We implemented a cueing paradigm where 3-to 4-month-old infants observed images showing either congruency (e.g., a large numerosity primed by a large hand opening) or incongruency (e.g., a large numerosity primed by a small hand opening). Infants' brain activity was modulated by the congruency of the pairings: amplitudes recorded over frontal and parietal-occipital scalp positions differed for congruent versus incongruent pairings. These findings suggest that the association between number and hand action processing is already functional early in life.
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hal-03848143 , version 1 (10-11-2022)

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Gisella Decarli, Pia Rämä, Lionel Granjon, Ludovica Veggiotti, Maria Dolores De de Hevia. Electrophysiological Evidence for A Number–Action Mapping in Infancy. Brain Sciences, 2022, 12 (11), pp.1480. ⟨10.3390/brainsci12111480⟩. ⟨hal-03848143⟩

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