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Obesity
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Body weight more than 20% higher than the average weight for a person of a given age and height
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Myelin
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Protective insulation that surrounds parts of the neurons
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Reticular formation
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An area of the brain associated with attention and concentration
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Cerebellum
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The part of the brain that controls balance and movement
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Corpus Callosum
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Bundle of nerve fibers that connects the two hemispheres of the brain
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Cerebral Cortex
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The part in the brain responsible for sophisticated and information processing
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Preoperational Stage
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According to Piaget, the stage from approximately ages 2-7 in which children’s use of symbolic thinking grows, mental reasoning emerges, and the use of concepts increases.
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Operations
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Organized, formal, logical mental processes
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Centration
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Process of concentrating on one limited aspect of a stimulus and ignoring other aspects
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Conservation
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The knowledge that quantity is unrelated to the arrangement and physical appearance of objects
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Transformation
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The process in which one state is changed into another
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Egocentric Thought
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Thinking that does not take into account the other viewpoints
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Intuitive Thought
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Thinking that reflects preschooler’s use of primitive reasoning and their avid acquisition of knowledge about the world
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Lateralization
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The process in which certain cognitive functions are located more in one hemisphere of the brain than the other
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Handedness
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The preference of using one hand over another
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