Large number discrimination in 6-month-old infants

Cognition. 2000 Jan 10;74(1):B1-B11. doi: 10.1016/s0010-0277(99)00066-9.


Six-month-old infants discriminate between large sets of objects on the basis of numerosity when other extraneous variables are controlled, provided that the sets to be discriminated differ by a large ratio (8 vs. 16 but not 8 vs. 12). The capacities to represent approximate numerosity found in adult animals and humans evidently develop in human infants prior to language and symbolic counting.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Child Development*
  • Cognition*
  • Concept Formation*
  • Female
  • Humans
  • Infant
  • Male
  • Mathematics
  • Mental Processes