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NS20 - Consciousness, Unconsciousness, Sleep, EEG (ii) (Sleep Benefits (GH…
NS20 - Consciousness, Unconsciousness, Sleep, EEG (ii)
Sleep Stages
1) light, lasts a few mins
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theta waves on EEG (high amplitude, low frequency) + some alpha
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Sleep Benefits
increased cognitive ability, memory, decision-making skills
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sleep deprivation
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shortens REM (along with alcohol, nicotine, antidepressants, anxiolytics)
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Sleep disorders
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sleep apnoea
2 types
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obstructive
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symptoms = snoring, hypertension
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narcolepsy
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EDS, sleep paralysis, cataplexy (abrupt loss of muscle tone), increased REM, hypnagogia (experiencing transition from awake to asleep)
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