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1 sheep…2 sheep - about sleep Submitted by: Alan Kojima-DePauw University.

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Presentation on theme: "1 sheep…2 sheep - about sleep Submitted by: Alan Kojima-DePauw University."— Presentation transcript:

1 1 sheep…2 sheep - about sleep Submitted by: Alan Kojima-DePauw University

2 Biological Clock: Light Trigger Brain and body operates on a 24 hour day-night cycle. Melatonin: hormone that has a relaxing effect on the body. Night triggers the release of melatonin Light stops the release of melatonin you wake up.

3 SAD…I know Seasonal Affective Disorder –Tendency to become depressed during certain seasons of the year. Majority of people are depressed during the fall and winter seasons. –Less sunlight

4 Need 8 hours? Everyone needs 8 hours of sleep a night 70-year-old woman slept an average of an hour for 5 consecutive nights no ill effects Randy Gardner world record –11 days w/out sleep –5 th day hallucinations –Slept for 15 hours

5 You think you have a disorder dont you? Insomnia: (difficulty falling asleep) –Pseudoinsomnia: people say they have insomnia but actually sleep normal. Narcolepsy: (extreme daytime sleepiness) –Sleep attacks occur spontaneously and last from 1 min-1 hour on average. Nightmares vs. Night Terrors –Nightmares are bad dreams (During REM sleep) –Night Terrors are frightening dreams that arouse the sleeper to a near-panic state (Not during REM sleep)

6 ~Dreams~ Dreams occur mostly during REM sleep when the mind/body is in deep sleep. REM dreams are more bizarre than non- REM dreams. Cultural background, current concerns, and recent events influence our dreams Passer, Michael W., and Ronald E. Smith. Psychology: the Science of Mind and Behavior. 3rd ed. New York: McGraw-Hill, 2007. 161-173.

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