The studies

Infants' Discrimination of Number vs. Continuous Extent

A study that questioned earlier findings

Infants' Discrimination of Number vs. Continuous Extent

Lisa Feigenson, Susan E. Carey, Elizabeth S. Spelke · 2002 · Cognitive Psychology

Children
Not given in the summary we read
Where
Not given in the summary we read
Ages
First year
How
Seven lab experiments
What it found
When number and total amount were separated, babies reacted to the amount of stuff, not the number of things, including in the adding task.
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