sleep Flashcards
when does non_REM sleep occur
most abundant with light and deep states // at start of the night
EEG, cerebral flow, and muscle actiivty in non-rem sleep
synchronised, partial muscle relaxation, reduced cerebral blood flow
when does REM sleep occur
3-5 periods a night, max 1 hour
EEG, cerebral flow, and muscle activty in REM sleep
EEG fast, atonic muscles (except diaphragm and eyes), increased cerebral flow
which stage of sleep do dreams occur in
REM
sleep cycle
light non-rem –> deep non-rem –> REM –> light-nonREM etc
symptoms sleep deprivation
irritable, paranoid, visual illusions, microsleeps and concentration lapse, impairs alertness and analysis of change
what are parasomnias
unwanted events or experiences when sleeping
non-rem parasomnias
sleep walking, nightmares, confusion arousal (restless legs, teeth grinding)
REM parasomnia
sleep paralysis, nightmares
symptoms sleep paralysis
paralysis that occurs shortly before falling asleep or just after waking up + hallucinations (REM sleep)
mx sleep paralysis
clonazepam
genetics + protein narcolepsy
HLA DR2, low orexin (hypocretin)
who gets narcolepsy
teenagers
symptoms narcolepsy
over sleeping, cataplexy, sleep paralysis, Hypnagogic hallucinations (very real hallucinations on waking)
