03-30 Cognitive Development1-1

03-30 Cognitive Development1-1 - Cognitive Development...

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1 Cognitive Development Cognitive Development Physical Growth & Innate Capacities • Piaget’s Stage Theory of Cognitive Development • Beyond Piaget • Language Development Physical Growth Brain Size – In most mammals, the newborn’s brain is nearly adult size – Human brain starts out at 23% of adult size – Growth spurts in the human brain • Increasing dendritic growth b formation of more synapses • Increasing myelinization • Human growth rate is much slower than other mammals newborn 3-months 15-months
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2 Innate Response Capacities • Infants possess a number of vital reflexes Rooting reflex – when cheek touched, infant turns head and opens mouth Sucking reflex – rhythmic sucking when stimulation 3-4 cm inside mouth Innate Response Capacities • Infants possess a number of vital reflexes Grasp reflex – when object touches palm, infant closes fist tightly around object Orienting reflex – infants pay more attention to novel stimuli than those to which they have habituated Cognitive Development • Physical Growth & Innate Capacities Piaget’s Stage Theory of Cognitive Development • Beyond Piaget • Language Development
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03-30 Cognitive Development1-1 - Cognitive Development...

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