Parallels in stimulus-driven oscillatory brain responses to numerosity changes in adults and seven-month-old infants.


Journal Article

Previous studies provide indirect evidence for an ontogenetically continuous Approximate-Number System. We employed a rapid steady-state visual-presentation paradigm combined with electroencephalography to measure stimulus-driven neural oscillatory responses to numerosities in infants and adults. Steady-state repetition of the same numerosity across a 2.4-sec time block yielded an increase in the stimulus-locked neural entrainment in both groups. Entrainment changes following a numerosity switch varied by the ratio of the numerosities, consistent with Weber's Law. These similarities thus provide direct evidence for an ontogenetically continuous Approximate-Number System. Moreover, the degree of neural entrainment significantly predicted infants' number discrimination measured behaviorally two months later.

Full Text

Duke Authors

Cited Authors

  • Libertus, ME; Brannon, EM; Woldorff, MG

Published Date

  • 2011

Published In

Volume / Issue

  • 36 / 6

Start / End Page

  • 651 - 667

PubMed ID

  • 21761991

Pubmed Central ID

  • 21761991

Electronic International Standard Serial Number (EISSN)

  • 1532-6942

Digital Object Identifier (DOI)

  • 10.1080/87565641.2010.549883


  • eng

Conference Location

  • England