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Education Research International
Volume 2012, Article ID 964052, 5 pages
Research Article

Small Number Discrimination in Early Human Development: The Case of One versus Three

1Department of Experimental Clinical and Health Psychology, Developmental Disorders, Ghent University, 9000 Gent, Belgium
2Department of Data-Analysis, Ghent University, 9000 Gent, Belgium
3Department of Youth Health Care, Catholic University of Louvain, 1348 Louvain-la-Neuve, Belgium
4Centre for Parenting, Child Welfare and Disabilities, Catholic University of Louvain, 1348 Louvain-la-Neuve, Belgium
5Artevelde University College, 9000 Gent, Belgium

Received 13 March 2012; Revised 25 June 2012; Accepted 25 June 2012

Academic Editor: Jan Elen

Copyright © 2012 Annelies Ceulemans et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The current study aims to investigate in infants the discrimination of the number set 1 versus 3. This number set has not been studied before within the field of early number discrimination. Participants were 16 full term 8-month-olds. They were assessed for their number discrimination ability with a computerized habituation task in combination with an eye tracking device as an accurate measure for looking time in infants. The stimuli (dots) were controlled for continuous variables. Attention was given to different approaches to analyse data retrieved from the habituation paradigm. The main results showed that 8-month-olds discriminated 1 from 3 dots by looking longer at a novel number after habituation to another number. This supports small number discrimination in infancy. Results retrieved through other analyse approaches are discussed.