1. circadian rhythm internal timing mechanism cycle of activity ~ 24 hours

2. suprachiasmatic nucleus SCN of hypothalamus > pineal gland (melatonin)

3. suprachiasmatic nucleus

4. entrainment & SCN What does it mean to “entrain” the SCN? What cues can entrain the SCN?

5. jet lag fatigue & inefficiency body clock out of phase with timing of your surroundings phase-advance phase-delay

7. body restoration why sleep? strengthens learning & memory evolutionary adaptation

8. prevent injury in dark energy conservation predation & meal frequency

9. evolutionary adaptation gorillas bears lions grazing animals

10. EEG vs. EOG electroencephalograph vs. electro-oculograph

11. awake stage 1 stage 2 stage 3 stage 4 REM relaxed wakefulness slow wave sleep resembles wakefulness irregular activity paralysis (pons) rapid eye movement

12. overnight slow wave sleep REM

13. awake stage 1 stage 2 stage 3 stage 4 REM dreams w/ plot paralysis sleepwalking sleeptalking night terrors

14. sleep disorders

15. insomnia 3 types: - hard to fall asleep - wake too early - wake frequently overnight

16. insomnia Restless Leg Syndrome

17. Do you ever clench or grind your teeth at night? bruxism

18. discussion As a child, ever wake up screaming? Difference between night terror & nightmare?

19. sleeping pills benzodiazepines “Ambien”

20. discussion Should a person be accountable for their behavior? “Ambien Drivers”

21. other Heard stories of a guy attacking someone in his sleep? REM Sleep Behavior Disorder (violence?)

22. discussion Difference between sleepwalking & REM Sleep Behavior Disorder?

23. discussion When you awaken, you are paralyzed. You can hear, feel, think but can’t move!

24. narcolepsy a broad category

25. narcolepsy sudden attacks of extreme, irresistible sleepiness midday

26. sleep paralysis When you awaken, you are paralyzed. You can hear, feel, think but can’t move!

27. hallucinations hypnopompic hypnogogic

28. cataplexy loss of muscle control during high emotion

29. dreams environmental stimuli ACTIVATION SYNTHESIS THEORY random pons firing activates brain cortical areas try to make sense of random info frontal lobe is shut down so no logic issues preoccupied with