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Lecture 6

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York University
PSYC 2110
Jean Varghese

Lecture 6: Piagetian approach: • Looks at origin of knowledge, looks at wrong answers • Looks at changes in quality of schemes with thinking • Schemes (organized way of thinking) Knowledge construction 1) Adaptation: how kids handle new info a) Assimilation: use current schemes to interpret new info b) Accommodation: adjust existing exhumes to fit new info 2) Equilibrium: balance b/w assimilation and accommodation 3) Organization: arranges & links new schemes to other schemes Piaget’s sensorimotor stage (birth to 2 years): begins with reflex action and ends with use of symbols -- NO language 1. Substage 1 (0-1 m): use of reflexes • Modifying reflexes due to experience 2. Substage 2: Primary circular reactions (1-4): • Repetition of enjoyable acts performed on own body , - i.e. sucking thumb 3. Substage 3: Secondary Circular Reactions (4-8 m): • Repetition of enjoyable acts performed by env 4. Coordination of 2 dary schemes (8-12m) • Schemes are combined and coordinated to solve simple problems 5. Tertiary circular reactions (12-18m) • Repeating old skills with new objects -- dropping diff stuff 6. Mental representation (18-24m) • Beginning of symbolic thinking (crown achievement of infancy) • Mentally work through problems Object permanence: object continues to exist when it is not present Develops during sensorimotor stage: 2 errors • 1. Anot B error (tendency to search for object when they last found it, rather where they most recently saw it) • *** Frontal lobe is still developing • 2. Error due to invisible displacement: inability to make inferences about objects location when they can’t visibly track object • * E.g: ball under blanket and hand Violation of Expectation: method shows evidence of some form of object permanence Space: 1. Early in development infants use egocentric framework for location (SELF) 2. Later they use allocentric framework (using other things to pinpoint where things are) 2-2.5- pics to search for objecys Space: 3 year old can use scale models to search for objects • 3 year old -- Dual representation -- Object + representation of larger room!! • <3- no dual representation Preoperational period (2-7 years): • Development of symbolic function (ability to use symbol or word to represent something that is not physically present)w • Egocentric and intuitive behaviour 1. Pre-conceptual (2-4 yrs): • Ability to use mental symbols to represent people, objects or events Limitations of preconceptual substage: 1. Egocentrism • Thinking that does not take the viewpoint of others into account 2. Animism • Attribute life to inanimate objects – i.e: sun follows the car 3. Inability to distinguish appearance from reality • The milk is green when viewed through green glasses 2. Intuitive thought (4-7 years): • Begin to use primitive reasoning, unaware of how they know what they know Limi
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