PSYC1300 review test 2

PSYC1300 review test 2 - TEST 2 REVIEW 1 Stages of Sleep...

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TEST 2 REVIEW 1. Stages of Sleep and Brain Waves in Sleep a. Stage 1 – transition between wakefulness and sleep, has relatively rapid low voltage brain waves b. Stage 2 – slower more regular wave pattern, has momentary interruptions called sleep spindles c. Stage 3 – brain waves slower with high peaks and low valleys d. Stage 4 – deepest stage of sleep, people least responsive, and wave patterns slow and regular 2. EEG 3. REM, REM rebound, muscles during REM a. REM – sleep that occupies a little over 20% of sleep characterized by: rapid eye movement, increased and irregular heart rate, increase in blood pressure, increase in breathing rate, erections in males, usually accompanied by dreams, person’s body is typically “paralyzed” b. Rebound effect – when deprived of REM spend more time in REM sleep than they normally would c. Muscles during REM – typically “paralyzed” 4. Age differences in sleep a. As people get older they sleep less b. The proportion of REM sleep decreases with age 5. Theories of Dreams: a. Unconscious Wish fulfillment theory (FRUED 1900): proposed that dreams represented unconscious wishes that the dreamer want to see fulfilled b. Dreams for survival theory: dreams permit information that is critical for our daily survival to be reconsidered and reprocessed during sleep c. Activation-synthesis theory: during REM sleep brain stimulates memories lodged in the brain and put it together to make a logical story line 6. Dream Symbolism : 7. Different Sleep Disorders: a. Insomnia – unable to fall asleep easily, go to sleep readily but wake up frequently during the night, can be due to a particular situation b. Sleep apnea – condition in which a person has difficulty breathing while sleeping, results are disturbed and fitful sleep, the person is constantly reawakened when the lack of oxygen becomes great enough to trigger a waking response. c. Sudden Infant Death Syndrome - killer of seemingly normal infants who die while sleeping d. Night Terrors – sudden awakenings during REM sleep that come with extreme fear, panic, and strong physiological arousal, occurs in stage 4 sleep e. Narcolepsy – go straight from wakefulness to REM sleep skipping the other stages 8. EEG : 9. Different Brain Waves during sleep stages: a. Stage 1 – relatively rapid low amplitude brain waves b. Stage 2 – slower more regular wave pattern along with momentary interruptions called “sleep spindles” c. Stage 3 – slow waves with greater peaks and valleys than stage 2 d. Stage 4 – deepest stage of sleep, least responsive 10. What goes on during REM sleep: a. Heart rate increases and becomes irregular b. Blood pressure rises
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c. Breathing rate increases
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PSYC1300 review test 2 - TEST 2 REVIEW 1 Stages of Sleep...

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