Sleep Flashcards
Students will be able to 1 Describe the importance of sleep 2 Describe normal sleep architecture and specific features of the various stages of sleep 3 Understand Sleep Lingo 4 Describe normal sleep across the lifespan and how it changes 5 List mechanisms of sleep/wake in the brain a6 State the two main regulatory influences on sleep and what can result if they are out of line
importance of sleep
restorative “anabolic” phase
memory consaolidation
loss can lead to somatic disability
phases of sleep
non REM - N1,2,3
REM - tonic/phasic
time majority of non-Rem Sleep occurs
first 1/3
time majority of REM sleep occurs
latter half
stage with slow wave sleep
NREM 3
relationship between age and time spent in REM sleep
older gets less REM (as well as total sleep)
stage alpha waves occur
awake with eyes closed
stage theta waves occur
stage 1
stage sleep spindles/K complexes occur
stage 2
stage delta waves occur
stage 3
age parasomnias occur
stage 3
“deepest stage” of sleep
stage 3
Sleep onset latency
time to sleep onset
REM latency
time from sleep onset to REM
wake time after sleep onset
amount of time spent awake after sleep onset
issues with sleep in elderly
incresed SOL, decreasd REM latency, reduced SWS, reduced REM, frequent awakanings, phase advancement
NT in the reticular activating system
ACh
NT that promotes sleep
Serotonin
NT with role in dreams
NE
NT produced by the pineal gland
melatonin
NTs that produce wakefulness
NE and dopamine
part of the brain controlling circadian rythyms
suprachasmatic nucleus
regulates REM
circadian system
chemical that is built up from metabolism that causes sleep
adenosine
SWS is regulated by what system
homeostatic
can screw up circadian rhythyms
brigh light exposure at night and inconsistant wake times
can screw up homeostatic sleep cycles
changes in sleep habits, caffiene intake late, sederntary lifestyle
