chapter 3 Flashcards
definition of consciousness
our awareness of ourselves and our environment
what does dual processing principle postulate?
much of our everyday thinking occurs below conscious awareness
what is selective attention
focusing of conscious attention on a particular thing
brain waves in stage 1
theta waves
brain waves in stage 2
sleep spindles
brain waves in stage 3
delta waves
what is the 4th stage of sleep called
REM, rapid eye movement
during what stage of sleep are we aroused but paralyzed
stage 4
what stage do we have most vivid dreams
stage 4
give a reason why we sleep
for growth, a growth hormone gets released in sleep
2 health risks of sleep deprivation
slows reaction time, weight gain
how could sleep protect our ancestors
they could die from something that they cant see in the dark
what does REM have to do with memory
we encode and sort memories
symptom of insomnia
persistent problems falling and staying asleep
symptom of narcolepsy
periodic urges to sleep, sleep attacks
symptom of sleep apnea
stop breathing while sleeping
what are night terrors
sudden arousal and intense fear
what is somnambulism
sleepwalking
according to freud what are dreams
dreams are expressions of unconscious wishes
what are phallic symbols
symbols of unconscious urges, steeple
according to cognitive psych what are dreams
memory consolidation, dreams are just the brain trying to make sense of your day and sort memories
what does activation synthesis theory have to say about dreams
making sense of random neural activity
how do depressants work on brain
slows neural activity
3 effects of alcohol on brain
slows activity in frontal lobe, disrupts memory consolidation, blocks REM
