Chapter 3 Flashcards
our internal biological clock that helps regulate when we sleep and are awake
Circadian rhythm
this stage of sleep contains delta waves
NREM stage 3
5 reasons we sleep
protectiom, recuperation, restore and rebuild memories, feeds creative thinking, supports growth
while asleep, we cycle through how many sleep stages about every 90 minutes?
4
sleep disorder characterized by high arousal and an appearance of being terrified
night terrors
what is insomnia?
reccuring problem in falling or staying asleep
failing to notice changes in the environment
change blindness
a principle that info is simultaneously processed on a conscious track and an unconscious track?
dual processing
this type of drug distorts perceptions and evokes sensory images w/o sensory input
hallucinogens
what is addiction
compulsive craving of drugs/behaviors depsite known consequences
under states of consciousness, what are the three parts to spontaneous?
daydreams, drowsiness, dreaming
alpha waves are?
slow brain waves of a relaxed awake state
our self-awareness and ability to be aware of our surroundings is known as
consciousness
when effects of a drug diminish with the same amount of use over time
tolerance
what is REM sleep?
- rapid eye movement
- 1 hour after falling asleep and lasts 10 minutes with vivid dreaming, sharp brain activity. heart rate rises, breathing increases, and is difficult to be awoken
the study of the brain activity linked with our mental processes consciousness
cognitive neuroscience
what is sleep?
natural periodic loss of consciousness
sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings
sleep apnea
what us a psychoactive drug
alter perception and mood
this type of durg excited neural activity and speeds up body functions
stimulants
what is selective attention?
- the focus of our awareness
- our senses take in about 11,000,000 bits of info per second and we consciously process 40
non-REM stage 2 last about 20 minutes, a more relaxed and more deeply asleep than in stage 1 and?
experience sleep spindles which are bursts of rapid rhythmic brain wave activity
when someone continues to use a substance despite significant life disruption/risk
sustance use disroder
blindsight
a person can respond to visual stimulus w/o consciously experiencing it
the type of drug reduces neural activity and slows body functions
depressants
