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Consciousness during wake and sleep (p.199) (Sleep (Rapid eye movement…
Consciousness during wake and sleep (p.199)
Circadian Rhythms (daily rhythms)
Circadian (Latin) - 'about a day'
Biological clock - schedule for various physical processes
Wake - alertness and awareness of external stimuli
Sleep - reduced alertness and awareness of external stimuli
Waking
(EEG) electroencephalogram
Three patterns of activity
beta waves
15 - 30 cycles per sec
alert waking
alpha waves
9 - 12 cycles per sec
relaxed waking
gamma waves
+30 cycles per sec
attention to sensory input
Daydreaming - spontaneous, subjective experiences in a no-task, no-stimulus, no-response situation
Sleep
Rapid eye movement (REM)
Waves resemble waking
Rapid movement of the eyes
muscular paralysis
sympathetic nervous system activation
Non-rapid eye movement (N-REM)
Theta and delta waves
Deep physical relaxation
Theta waves
4 - 7 cycles per second
lighter stages of N-REM sleep
Delta waves
1 - 4 cycles per second
deep N-REM sleep