Term
| Growth hormone deficiency |
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Definition
| Absence or deficiency of growth hormone produced by the pituitary glands to stimulate the body to grow. (P. 199) |
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Term
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Definition
| The process by which the nerve cells are covered and insulated with a layer of fat cells, which increases the speed at which information travels through the nervous system. (P.200) |
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Term
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Definition
| Piaget's second stage, lasting from about 2 to 7 years of age, during which children begin to represent the world with words, images, and drawings, and drawings, and symbolic thought goes beyond simple connections of sensory information and physical action; stable concepts are formed, mental reasoning emerges, egocentrism is present, and magical beliefs are constructed. (P. 206) |
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Term
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Definition
| In Piaget's theory, these are reversible mental actions that allow children to do mentally what they formerly did physically. (P. 206) |
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Term
| Symbolic function substage |
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Definition
| Piaget's first substage of preoperational thought, in which the child gains the ability to mentally represent an object that is not present (between about 2 and 4 years of age). (P. 206) |
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Term
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Definition
| The inability to distinguish between one's own perspective and someone else's (salient feature of the first substage of preoperational thought). (P. 207) |
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Term
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Definition
| The belief that inanimate objects have lifelike qualities and are capable of action. (P. 207) |
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Term
| Intuitive thought substage |
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Definition
| Piaget's second substage of preoperational thought, in which children begin to use primitive reasoning and want to know the answers to all sorts of questions (between 4 and 7 years of age). (P. 208) |
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Term
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Definition
| Focusing attention on one characteristic to the exclusion of all others. (P. 208) |
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Term
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Definition
| In Piaget's theory, awareness that altering an object's or a substance's appearance does not change its basic properties. (P. 208) |
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Term
| Zone of proximal development (ZPD) |
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Definition
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