Term
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Definition
| cyclically occurring state of decreased motor activity and perception |
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Term
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Definition
| this group need less sleep but more rest |
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Term
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Definition
| biorhythm based on the day-night pattern in a 24 hour cycle |
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Term
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Definition
| this system promotes sleepiness |
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Term
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Definition
| this system promotes wakefulness |
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Term
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Definition
| inability to fall asleep, remain asleep or go back to sleep |
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Term
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Definition
| excessive daytime sleepiness, inability to concentrate, fatigue, lethargy, and irritability |
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Term
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Definition
| abnormality in sleep/wake times |
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Term
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Definition
| decreased vigilance, decreased ability to perform psychomotor tasts, and dshort term sleep episodes the person is not aware of |
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Term
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Definition
| unpleasant creeping, crawling, itching, or tingling sensations in the legs |
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Term
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Definition
| disorder of the CNS ccharacterized by an uncontrollable movement of the legs while resting prior to sleep onset |
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Term
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Definition
| periodic lack of breathing during sleep |
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Term
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Definition
| apnea caused by airway occlusion during sleep, but the person continues to try to breath |
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Term
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Definition
| comolete suspension of breathing resulting from a dysfunction in central respiratory control |
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Term
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Definition
| sign og obstructive sleep apnea, muscles at the back of the mouth relax during sleep, obstruct the airway and vibrate with each breath |
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Term
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Definition
| Cataplexy, sudden loss of muscle tone, sleep attacks |
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Term
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Definition
| occurs during stages 3 and 4 of NREM sleep |
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Term
| secondary sleep disorders |
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Definition
| occurs when a disease causes alterations in sleep stages or in quantity and quality of sleep |
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