states of consciousness Flashcards
consciousness
the awareness of ourselves and our environment
circadian rhythm
the 24 hr cycle
what area regulates your circadian rhythm?
the hypothalamus
what produces melatonin?
the pineal gland
what happens to adenosine levels when we fall asleep
adenosine levels go down when we fall asleep
how many stages of sleep do we have in 90 mins
4
hypnagogic sleep
relaxed and drowsy state before sleep
eegs measure?
they measure the electrical activity of the brain
non-rem stage 1
-the twitch
-theta waves prominent (relaxation)
-normal brain waves
non-rem stage 2
-clearly asleep
-sleep spindles (short little brain wave spurts)
non-rem stage 3
-delta waves
BATS Drink Blood
B- beta
A- alpha
T- theta
S- sleep spindles
Drink- delta
Blood- beta
BETA IS AWAKE
ALPHA IS SLEEPY
THETA IS N-REM 1
SLEEP SPINDLES IS N-REM 2
DELTA IS N-REM 3
BETA IS REM SLEEP
rem sleep facts
occurs 1 hr after you fall asleep
you dream
your heart rate increases
you breathe rapidly
your eyes move rapidly
during sleep, what stores memories
your hippocampus
what happens to time when you sleep
neurons fire faster so your perception of time is distorted
freud theory
manifest content - the remembered story line
latent content - the underlying meaning
the information processing theory
helps sift out memories from the day
the activation synthesis theory
says that we dream to help maintain neural pathways
the cognitive theory of dreaming
to reflect cognitive development
what is rem sleep behaviour disorder
where you act out your dreams
stimulants
-increase norepinephrine
-decrease gaba
-activates fight or flight
-COCAINE, NICOTINE, CAFFIENE
depressants
-maximizes gaba
-ALCOHOL, TRANQUILIZERS
opiates/narcotics
-glutamate
-changes neuron structure
HEROINE, VICADIN, OXYCODONE, MORPHINE
hallucinogens/psychadelics
-seratonin
-dopamine
-ECSTASY, SHROOMS, LSD, WEED
