Psych 101 Module 18

Psych 101 Module 18 - Psych 101 Module 18 Waking and...

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Psych 101 Module 18 Waking and Sleeping Rhythms 04/09/2007 17:25:00 Consciousness  is our awareness of ourselves and our environment. Can only focus on one thing at once. Biological Rhythms:  periodic physiological fluctuations 1.  Annual cycles- migrations, hibernations, seasonal habits etc 2. Twenty-eight-day cycles- female menstrual cycle 3.  Twenty-four-hour cycles- varying alertness, body temp., and growth  hormone secretion.  ( Circadian rhythm) o Light tweaks the circadian clock by activating light-sensitive retinal  proteins. 4.  Ninety-minute cycles- various stages of sleep in 90 min cycles. (usually  about 5 stages):  REM sleep-  Rapid eye movement, a recurring sleep stage during which vivid  dreams commonly occur.  (Paradoxical sleep)  the muscles are relaxed (except for  minor twitches) but other body systems are active.
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This note was uploaded on 12/01/2008 for the course PSYCH 101 taught by Professor Maas, j during the Fall '08 term at Cornell.

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Psych 101 Module 18 - Psych 101 Module 18 Waking and...

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