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Physical Development in Infancy

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Term
Description
cephalocaudal principle   the principle that growth follows a pattern that begins with the head and upper body parts and then proceeds down to the rest of the body  
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proximodistal principle   the principle that development proceeds from the center of the body outward  
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principle of heirarchial intergration   the principle that simple skills typically develop separately and independently but are later intergrated into more complex skills  
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principle of the independence of systems   the principle that different body systems grow at different rates  
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neuron   basic nerve cell of the nervous system  
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synapse   the gap at the connection between neurons, through wich neruons chemically communicate with one another  
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myelin   a fatty substance that helps insulate neurons and speeds the transmission of nerve impulses  
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cerebral cortex   the upper layer of the brain  
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plasticity   the degree to which a developing structure or behavior is modifiable due to experience  
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sensitive period   a specific, but limited, time, usually early in an organism's life during which the organism is particularly susceptible to enviromental influences related to some particular facet of development  
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rhythms   repetitive, cyclical patterns of behavior  
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state   the degree of awarness an infanct displays to both internal and external stimulation  
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rapid eye movement sleep   the period of sleep that is found in older children and adults and is associated with dreaming  
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sudden infant death syndrome   the unexplained death of a seemingly healthy baby  
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reflexes   unlearned, organized involuntary responses that occur automatically in the presence of certain stimuli  
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norms   the average performance of a large sample of children of a given age  
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Brazelton Neonatal Bahavioral Assessment Scale   a measure designed to determine infants' neurological and behavioral responses to their environment  
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marasmus   a disease characterized by the cessation of growth  
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kwashiorkor   a disease in which a child's stomach, limbs, and face swell with water  
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nonorganic failure to thrive   a disorder in which infants stop growing due to a lack of stimulaiton and attention as the result of inadequate parenting  
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sensation   the stimulation of the sense organs  
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perception   the sorting out, interpretation, analysis, and integration of stimuli involving the sense organs and brain  
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multimodal approach to perception   the approach that considers how information that is collected by various individual sensory systems is integrated and coordinated  
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affordances   the action possibilities that a given situation or stimulus provides  
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Created by: eestrand
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