Authors: Xu, Fei¹; Arriaga, Rosa I.²

Source: British Journal of Developmental Psychology, Volume 25, Number 1, March 2007 , pp. 103-108(6)

Abstract:

Two experiments investigated developmental changes in large number discrimination with visual-spatial arrays. Previous studies found that 6-month-old infants were able to discriminate arrays that differ by a ratio of 1:2 but not 2:3. We found that by 10 months, infants were able to reliably discriminate 8 from 12 elements (2:3) but not 8 from 10 elements (4:5). Thus, number discrimination improves in precision during the first year, and these findings converge with studies using auditory stimuli.

Document Type: Research article

DOI: 10.1348/026151005X90704

Affiliations: 1: University of British Columbia, Canada 2: Harvard University, USA