Developmental Psychology, Lecture in March 4 th
Chapter Eight: Cognition (Continued)
thought processes and mental activities including;
attention, memory, concept formation, and problem solving are evident
from early infancy and onward.
Piaget's theory of cognitive development;
generic epistemologist, interested in the origins of knowledge from a
thinking is characterized by adaptation and organization.
focused on schemes; knowledge structures of the world.
done through assimilation and accommodation.
1. Sensorimotor stage; - (Birth to 2yo) thought is based primarily in action.
o A-not-B error, child can pass object permanence or knowing that
objects exist even when out of view.
child cannot inhibit their reach for where the toy was first
2. Preoperational stage; - (2 - 7yo) thought becomes symbolic in form
o egocentrism and centration.
3. Concrete operational stage; - (7 - 11yo) conversation via operations
(mental activities), reversibility.
4. Formal operational stage; - (11 - 15yo)