ch 7 - CH 7: PHYSICAL & COGNITIVE DEVELOPMENT OF EARLY...

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Development period: early childhood (2-6 years) Dramatic growth levels off 2-3 in/year in height Gain 5 lbs/year in weight Posture gets better Proportion becomes more adult-like Teeth – care important at this stage Brush, avoid sugary foods, drink fluorinated water, get dental care Age 6 start losing teeth Protect from tobacco smoke – causes immune system to be unable to fight bacteria Brain Development During stage, brain increases from 70% of adult size to 90% Improves many areas More synapses formed Myelination Greater cell death Synaptic pruning Coordination, perception, attention, memory, language, logical thought, imagination
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Frontal lobe has 2x neurons as adults Language skills increase, self-control increases Right hemisphere is responsible for spacial skills Lateralization continues Handedness – righty/lefty Hand preference develops Right hand/left brain controls Left hand (10%)/ right brain Language skills are shared between hemispheres More likely to be ambidextrous Left handed is absence of right hand gene More likely to have outstanding verbal and mathematical talents More likely to be less lateralized (share jobs) Brain changes Cerebellum – balance and control of body movement Grow thru preschool years Increase size and connections Increase thinking skills Corpus callosum
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Reticular formation – maintaines alertness and consciousness Better able to pay attention Forming connections Hippocampus – memory and spacial skills Form maps in head Happens 2 nd half of 1 st year Influences on growth Hormones responsible for growth Pituitary gland
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This note was uploaded on 01/04/2012 for the course PSY 231 taught by Professor Limegrover during the Fall '08 term at Miami University.

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ch 7 - CH 7: PHYSICAL & COGNITIVE DEVELOPMENT OF EARLY...

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