Chapter: Psychology: Consciousness
Consciousness: Sleep
SLEEP AND WAKE CYCLES,
THE NEED FOR SLEEP,
THE FUNCTION OF SLEEP,
DREAMS,
WHY DO WEDREAM ?
SLEEP, DREAMS , AND CONSCIOUSNESS
Sleep
Across the hours of each day, the
arousal level of the brain rises and falls. Most of this variation is
controlled by a tiny cluster of about 20,000 cells located in the hypothalamus
(Mistlberger, 2005). These cells are responsible for controlling many rhythms
in the body, including a rhythm of arousal increases and decreases spanning
roughly a 24-hour period. This is why the sleep-wake rhythm is called circadian—from the Latin circa (“nearly”) and dies (“day”) (Figure 6.11).
·
SLEEP AND WAKE CYCLES,
·
THE NEED FOR SLEEP,
·
THE FUNCTION OF SLEEP,
·
DREAMS,
·
WHY DO WEDREAM ?
·
SLEEP, DREAMS , AND
CONSCIOUSNESS
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Psychology: Consciousness : Consciousness: Sleep |
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Psychology: Consciousness