PSYC-223 Lecture 4: Textbook chapter 2
23 Aug 2016
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This allowed researchers to find evidence that 5 month old infants do have a representation of objects, even when those objects are out of sight. He saw radical qualitative changes rather than continuous quantitative changes. According to piaget, children everywhere moved through the stages in the same order. There would never be any backtracking or skipping of stages. The first stage is called the sensorimotor stage from birth to approximately 2 years of age. Piaget emphasized the use of motor activity and physical interaction for knowledge acquisition. Object permanence develops at around 8 months of age. The second stage is called the preoperational stage from 2 years of age to around 7 years of age. Cognitive development is rapid and the development of pretend or symbolic play. Children in this stage understand past and future, but knowledge is still very egocentric and very concrete. The third stage is called the concrete operational stage from 7 to 11 years of age.
