Neurophysiological signatures of approximate number system acuity in preschoolers.
Approximate number system
Approximate number system acuity
Event-related potential
Numerical-ratio effect
Weber fraction
Journal
Trends in neuroscience and education
ISSN: 2211-9493
Titre abrégé: Trends Neurosci Educ
Pays: Germany
ID NLM: 101613233
Informations de publication
Date de publication:
03 2023
03 2023
Historique:
received:
26
10
2022
revised:
16
11
2022
accepted:
28
11
2022
entrez:
16
3
2023
pubmed:
17
3
2023
medline:
21
3
2023
Statut:
ppublish
Résumé
A hallmark of the approximate number system (ANS) is ratio dependence. Previous work identified specific event-related potentials (ERPs) that are modulated by numerical ratio throughout the lifespan. In adults, ERP ratio dependence was correlated with the precision of the numerical judgments with individuals who make more precise judgments showing larger ratio-dependent ERP effects. The current study evaluated if this relationship generalizes to preschoolers. ERPs were recorded from 56 4.5 to 5.5-year-olds while they compared the numerosity of two sequentially presented dot arrays. Nonverbal numerical precision, often called ANS acuity, was assessed using a similar behavioral task. Only children with high ANS acuity exhibited a P2p ratio-dependent effect onsetting ∼250 ms after the presentation of the comparison dot array. Furthermore, P2p amplitude positively correlated with ANS acuity across tasks. Results demonstrate developmental continuity between preschool years and adulthood in the neural basis of the ANS.
Sections du résumé
BACKGROUND
A hallmark of the approximate number system (ANS) is ratio dependence. Previous work identified specific event-related potentials (ERPs) that are modulated by numerical ratio throughout the lifespan. In adults, ERP ratio dependence was correlated with the precision of the numerical judgments with individuals who make more precise judgments showing larger ratio-dependent ERP effects. The current study evaluated if this relationship generalizes to preschoolers.
METHOD
ERPs were recorded from 56 4.5 to 5.5-year-olds while they compared the numerosity of two sequentially presented dot arrays. Nonverbal numerical precision, often called ANS acuity, was assessed using a similar behavioral task.
RESULTS
Only children with high ANS acuity exhibited a P2p ratio-dependent effect onsetting ∼250 ms after the presentation of the comparison dot array. Furthermore, P2p amplitude positively correlated with ANS acuity across tasks.
CONCLUSION
Results demonstrate developmental continuity between preschool years and adulthood in the neural basis of the ANS.
Identifiants
pubmed: 36925266
pii: S2211-9493(22)00025-4
doi: 10.1016/j.tine.2022.100197
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
100197Informations de copyright
Copyright © 2022 Elsevier GmbH. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.