Sleep Disorders Flashcards
when does non-REM sleep occur in the night
at the start of the night
physiological features of non-REM sleep
decreased cerebral blood flow
decreased HR + BP
what processes occur in non-REM sleep
protein synthesis
cell devision
growth
when does REM sleep occur
end of night
physiological features of REM sleep
increased cerebral blood flow
atonic muscles – decreased tone + strength
EEG activity in REM sleep
fast activity
EEG activity in non-REM sleep
synchronised, rhythmic activity
functions of REM sleep
consolidation of memory
maintains immune system
in what stage of sleep does dreaming occur
REM sleep
what things can suppress REM sleep
tricyclic antidepressants
alcohol
what are parasomnias
abnormal behaviour of the nervous system during sleep
can occur during non-REM and REM sleep
features of non-REM parasomnia
confusional arousals
sleep walking
sleep terrors / paralysis
bruxism (grining teeth)
REM sleep parasomnias are associated with what condition
Parkinsons
what is narcolepsy
chronic neurological disorder involving loss of the brains ability to regulate sleep-wake cycles
what are the 2 peak ages of onset of narcolepsy
age 15
age 36
