Conciousness
our entire subjective awareness of everything that is happening
Circadian rhythms
biological rhythm with a 24 hour period cycle
Entrainment
sycing sleep patterns with external cues
Example of entrainment
light, sounds
Endogenous rhythms
a biological internal 24-25 hour period that body follows
Where does endogenous rhythms come from
biological and genetic feedback loops
Purpose of sleep
restore, repair, preserve, protect
Restore and repair hypothesis
restores NRG levels and repairs damage to the body (brain gets time to clean up)
Preserve and protect hypothesis
preserves NRG and protects from danger
What is the difference in sleep between predators and prey
predators sleep for longer periods, prey sleeps for more smaller chunks
What are the stages of sleep
awake, drowsy, stages 1-4, REM
Awake
beta waves (higher frequency, lower amplitude)
Drowsy
alpha waves (slightly longer frequency, higher amplitude)
Stage 1
theta waves (slightly longer frequency, higher amplitude)
