chapter 4 Flashcards
(31 cards)
what is consciousness? (give example)
the awareness of internal and external stimuli (feeling cold, hot,hungry,tired,etc.
what is sleep?
a period, natural state of consciousness
what is EEG (electroencephalograph)?
monitos brain electrical activity
brain waves are …
amplitude (heigh)
& frequency of EEG is?
cycles per second
what are the EEG patterns starting from lowest to highest (in order from least to greatest)
delta, theta, alpha, beta
what is circadian rhythm? give example.
the internal biology clock of 24 hour cycle of day & night… body temp rises in the morning and dips in the afternoon and finally drops in the evening
circadian rhythm depends on ….
age and experience
how many stages are in the sleep cycle
5 but 3&4 are basically the same thing
list stages of sleep cycle ….. & minutes…
stage 1: about 15 minutes (body jerks)
stage 2 : sleep spindles about 10-25 minutes
stage 3 & 4 : slow wave sleep ( 30 minutes) body is finally getting rest
stage 5 : REM (vivid dreaming)
sleep patterns are …….. & …….. influenced
genetically & culturally influenced
what are some examples that affect our sleep patterns
work shifts or jet lag
why do we sleep? (5 with examples)
1.protective role ( avoiding dangers)
2. Restoring and repairing (neurons get built and stored to make them stronger)
3. strengthen neural connections(help remember stuff)
4. problem solving (we tend to be more creative when well rested)
5. growth hormone (muscle development)
what are some effects of sleep deprivation
weight gain, decreasing life span, inability to pay attention, etc
what is the sleep disorder (insomnia)
inability to get sleep or feel rested
what is the sleep disorder (narcolepsy)
sudden sleep during waking hours
what is the sleep disorder (sleep apnea)
gasping for air, then going back to sleep
what is the sleep disorder (somnambulism)
sleepwalking
what was freud’s theory of dreaming
mostly sex and aggression (wish fulfillment)
what was Rosalind Cartwright theory of dreaming
problem solving … so any problems in our life would be solved in our dreams
what as Hobsen and McCarley’s theory of dreaming
activation synthesis model (random activated)
what are psychoactive drugs & what is it also referred to as?
modifies mental, emotional, or behavioral functioning & recreational drugs
what are narcotics (…..)& what is it used for
(opiates) heroin, morphine, principally used as pain relievers
sedative drugs are used for?
stoping seizures
