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21 Cards in this Set

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Sleep stage: awake, eyes open
EEG waveform?
Beta - high frequency, low amplitude
Sleep stage: awake, eyes closed
EEG waveform?
alpha
Stage 1 sleep
EEG waveform?
% of time?
theta
5%
Stage 2 sleep
EEG waveform?
% of time?
Sleep spindles and K complexes
45%
Bruxism
grinding of teeth
occurs in Stage 2 sleep
Stage 3 sleep
EEG waveform?
% of time?
delta - low frequency, high amplitude
25%
Stage 3 sleep
pathology?
sleepwalking
night terrors
bedwetting
REM sleep
waveform?
% time?
Beta
25%
paramedian pontine reticular formation
aka conjugate gaze center
source of extraocular movements during REM sleep
NE and REM sleep
NE reduces REM sleep
primary REM sleep neurotransmitter?
ACh
REM sleep timing
every 90 minutes
stages increase in duration throughout night
sleep patterns in depression (6)
decreased slow-wave sleep
decreased REM latency
more REM early in cycle
more total REM
repeated awakenings
early-morning awakenings
hypnopompic hallucinations
hallucinations before awakening
occur in narcolepsy
hypnogogic hallucinations
hallucinations before falling asleep
occur in narcolepsy
narcolepsy and REM
sleep episodes begin with REM
narcolepsy treatment
stimulants (amphetamines, modafinil)
sodium oxybate (GHB)
driver of circadian rhythm
suprachiasmatic nucleus of hypothalamus
melatonin release pathway
SCN --> NE --> pineal gland --> melatonin
slow-wave sleep
stage 3 sleep
delta waves
sleep terror disorder
occurs during slow-wave sleep
no memories formed
triggers: stress, fever, exhaustion