Chapter 9: Brain States Flashcards
device used to measure the brain’s electrical activity
electroencephalography
what does an EEG detect?
net electrical charge produced when neurons increase and decrease
slow wave sleep
high amplitude and low frequency in EEG recordings
what happens during SWS?
the brain goes from a more excitable to less excitable state
REM sleep
rapid eye movement
what is the difference between a SWS and REM EEG?
REM sleep waves have lower amplitudes
how long are the alternating cycles of REM and SWS sleep?
90 minutes
histamine
plays a role in staying away
circadian system
the time of day or night for your body
homeostatic system
how long you have been awake
suprachiasmatic nucleus
small group of nerve cells that act like a master clock
sleep apnea
throat muscles relax to the point of collapse
CPAP
continuous positive airway pressure
narcolepsy
sleep attacks during the day
arousal
actively doing something
