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11 Cards in this Set
- Front
- Back
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what are some effects of sleep deprivation?
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increased irritability, difficulty studying, immune system suppression, obesity, hypertension
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sleep stage 1...
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theta waves.
Indicated by slow-rolling eye-movements in the EOG (electrooculogram) If awaken here, will report that you were not asleep yet Also report feelings of floating and myoclonic jerks |
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sleep stage 2...
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theta and delta waves some k complexes
Will admit to being asleep, but easily awoken Lasts 10-20 minutes |
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sleep stage 3 and 4 (slow wave sleep)
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stage 3. 20-50% delta waves
stage 4. more than 50% delta waves. Very difficult to awaken Called “deep” sleep stages |
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Rapid eye movement sleep stage
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First observed by Kleitman and Aserinsky in 1953 (they were trying to record slow-rolling eye-movements)
When awoken during this period, people reported dreaming |
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what causes most sleep disturbances?
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Many sleep disturbances are due to disrhythmia produced by living “out of sync” with the biological clock
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biological clocks...
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measure passage of time.
Not passive responders to the environment first discovered in plants. mammals biological clocks housed in suprachiasmatic nucleous |
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suprachiasmatic nucleus...
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an internal physiological cluster of cells that regulates daily rhythms in behavior and physiological processes
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what are some problems created by shift work?
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People are trying to sleep at times of the day when their body is trying to wake them up
Over time, rhythms will invert decrease in rem sleep and increase in stage 1 results in sleep deprivation |
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what is jet lag?
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Jet lag occurs when there is a disparity between internal rhythms and cues from the environment as the result of passing time zones
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Disorders of sleep-wake schedules
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Disturbances resulting from disruptive sleep schedules
Delayed sleep phase syndrome Go to bed late, get up late 4% of disorders |
