ch 4 psych notes -...

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Consciousness— your awareness of everything that is going on around  you and inside your own head at any given moment, which you use to organize  your behavior, including thoughts, sensations, and feelings Waking Consciousness—thoughts, feelings, and sensations are clear and  organized, and you are alert Altered state of consciousness—when there is a shift in the quality or  pattern of your mental activity Sleep Circadian Rhythm—a cycle that takes about a day to complete o Sleep-wake cycle Hypothalamus o Suprachiasmatic Nucleus—the internal clock that tells people when  to wake up and go to sleep o Sensitive to light o Tells the pineal gland to secrete melatonin for sleepiness o Also controls body temperature Microsleeps—brief sidesteps into sleep lasting only seconds Sleep Deprivation—loss of sleep o Impairs concentration and results in irritability/depression Adaptive Theory—animals evolved sleep patterns to avoid predators by  sleeping when predators are most active Restorative Theory—sleep is necessary to the physical health of the body o During sleep chemicals are replenished and cellular damage is  repaired o Bodily growth and repair occur during deep sleep Stages of Sleep REM Sleep—rapid eye movement o relatively active type of sleep when 90% of dreaming takes place o REM paralysis—voluntary muscles are inhibited o REM rebound—if you don’t get enough REM one night, you will  have more the next night Non-REM Sleep—deep and more restive Beta waves—(small/fast) person is awake and mentally active Alpha waves—(larger/slower) person is relaxed or lightly sleeping Theta waves—(larger/slower) person is sleeping lightly
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Delta waves—(largest/slowest) person is deeply sleeping
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This note was uploaded on 01/05/2012 for the course PSY 105 taught by Professor Gordon during the Fall '07 term at University of North Carolina Wilmington.

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ch 4 psych notes -...

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