Adler's Individual Psychology
Piaget's Stage 1 of Cognitive Development
Self-Concept
The Nativist Approach
Piaget's Stage 2 of Cognitive Development
Piaget's Stage 3 of Cognitive Development
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Updated: Mar 18, 2026

Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization
Published on: April 19, 2017
Susan A Gelman1, Natalie S Davidson1
1University of Michigan, United States.
Three-year-olds value their own used toys over new ones, showing an early understanding of unique item value. They recognize this preference is personal and not necessarily shared by others.
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