Consciousness Flashcards
consciousness
awareness of the world and self
circadian rhythm
the cycle in biochemical, physiological, and behavioral processes of living entities
set by light
regulated by melatonin
owls
night people
more commonly are younger or extroverts
larks
morning people
more commonly are older or introverts
sleep
reduced or absent consciousness, suppression of sensation, less reactions to stimuli, and the elimination of voluntary activity
parts of the brain involved in sleep
hypothalamus
thalamus
reticular formation
stages of sleep
awake awake and drowsy stage 1 stage 2 stage 3 stage 4 REM
how long do stages 1-4 last?
50-70 mins
how long does REM sleep last?
10-15 mins
how much does the average American sleep per night?
6.8 hrs
why do we sleep? (hypotheses)
reduce danger
conserve energy
restore body resources
remove brain toxins
dreams
involuntary brain activity during sleep
reported as ideas, images, emotions, and sensations
common dreams
flying naked in a crowd not being prepared being trapped being chased dying falling
are dreams mostly negative or positive?
negative
parts of the brain involved in dreaming
pons
amygdala
hippocampus