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Definition
| Visible, wrinkled surface of the brain |
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| Responsible for making decisions and for the physical aspects of speaking, such as mouth positioning |
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Definition
| Processes sensations and is located on the sides of the brain |
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Definition
| Processes auditory stimuli |
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Definition
| Areas of the brain responsible for learning, memory, and planning |
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| Ability of one area of the brain to take over the functions of other areas of the brain that have been damaged. Greatly decreases with age |
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Definition
| Produced when a person lies down, but is not yet asleep |
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Definition
| Slow, regular wave formations produced during sleep stages 1-2 |
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Definition
| Produced during stages 3 and 4, when brain activity slows down |
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Definition
| Produced after stage 4, when the brain is still asleep, but when the sleep cycle is moving backwards toward stage 1 sleep |
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| Also called stage 4, this is the phase in which dreams occur |
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Definition
| Persistent inability to fall asleep, characterized by constant awakening during the night, difficulty falling asleep, etc |
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Definition
| Overpowering urge to fall asleep that may occur during everyday activities, such as driving or talking |
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Definition
| Failure to breathe during sleep |
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