Lecture 5 -The First Two Years Cognitive and Psychosocial 2008 student version

Lecture 5 -The First Two Years Cognitive and Psychosocial 2008 student version

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The First Two Years: Cognitive and Psychosocial Development
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Cognitive Development As we learned, infants possess remarkably acute sensory perception from early on. How do they interpret and make sense of this experience? “Affordances”—objects have many possibilities and potential. .depending on developmental stage, individual characteristics, etc. Graspability must be perceived from environmental affordances.
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Perceptual skills provide tools that allow infants to structure information they receive through experience in order to build a world that is coherent and predictable. Example: coordination of sensory ssytems, infants look more at faces whose lips match sounds they are hearing
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Depth Perception Visual Cliff: apparatus that tests infant’s depth perception by using patterned materials and an elevated, clear glass platform to make it appear that one side of platform is lower than the other Requires both depth perception and fear of heights: baby animals that can walk at 1 day avoid deep side of visual cliff (babies don’t avoid until about 6 months)
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What are key elements of cognitive growth? Object permanence: Realization that objects and people exist even when they cannot be seen, touched, or heard. (Piaget) Will search for hidden object, around 8 months.
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MEMORY Memory is central to cognitive development. How long does infant memory last for? Approximately 1 week for 3-month-olds. Experiment with mobile that infants could kick to make move; lasted 1 but not 2 weeks when introduced again. By 1 year, they can remember behaviors they have seen but not done By 2 years, they can remember sequences of actions.
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Active Intelligence: Sensorimotor Piaget believed that first period of cognitive development relates to children’s actively seeking to understand their world—they lack concepts and ideas but they explore through senses and motor skills, learning from this experience.
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Lecture 5 -The First Two Years Cognitive and Psychosocial 2008 student version

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