1. 9/8/2018
Sleeping

2. Target Goal:
Students will be able to describe the sleep cycle and understand processes that impact sleep.

3. Waking Consciousness Demo- You tube link
Selective Attention ?
Inattentional Blindness?

4. EEG Waves of Wakefulness
9/8/2018
EEG Waves of Wakefulness
1 second
Alpha waves
Awake, nonattentive
1 second
Beta waves
Awake, attentive
Keywords: EEG, alpha waves, beta waves, wakefulness

5. How Long is a day? Industrial World- 24 hours
9/8/2018
How Long is a day?
Industrial World- 24 hours
Body ‘s Circadian Clock 24 hours 18 min
Keywords: electroencephalogram, EEG

6. 9/8/2018
Circadian Rhythm
Any rhythmic change that continues at close to a 24-hour cycle in the absence of 24-hour cues
body temperature
cortisol secretion
sleep and wakefulness
- Suprachiasmatic
Nucleus
Keywords: circadian rhythm

7. How do I fall asleep?
Step one- Circadian Clock influenced by SCN =Suprachiasmatic Nucleus
Step Two-Ventrolateral Preoptic Nucleus ( sleep master switch) turns off Brain arousal system ( reticular formation)

8. How do I fall asleep cont…
Step Three- Pons directs neurochemicals
( GABA) to regulate sleep
Step Four- Circadian Clock regulates body temp
Decrease at sleep, increase at wake

10. Theta- The

11. Scary- Sleep Spindles

12. Demon- Delta

13. Sees Dead- Slow Delta

14. Bodies- Beta … Rapid Eye Movement

15. How much sleep do I need? Children:
Newborns- 17 hrs sleep ( 50% in REM)
4 Year olds- 10 hrs
( 25-30% in REM)
As we age…
Adolescents- 10 hours a day- Later clocks
Adults( by age 20)
7-8 hours 20% or less in REM

16. Can I “cheat” sleep? Effects on Brain: Effects on Body:
Minimal effect on Heart rate, blood pressure, hormone secretions
Impact Immune function
( T- cell count)
Effects on Brain:
Irritability, Unhappiness
Lower concentration on mundane tasks
Hallucinations

17. What are the major sleep disorders ?
9/8/2018
What are the major sleep disorders ?
Keywords: somnambulism, nightmares, night terrors, narcolepsy, sleep apnea

18. Somnambulism

19. Nightmares

20. Night Terrors

21. Narcolepsy

22. Sleep Apnea

23. Individual Differences in Sleep Drive
9/8/2018
Individual Differences in Sleep Drive
Nonsomniacs - sleep far less than most, but do not feel tired during the day
Insomniacs - has a normal desire for sleep, but is unable to and feels tired during the day
Keywords: nonsomniacs, insomniacs

24. Teens and Sleep Cycles Sleep Survey Results
(Frontline-Teens and sleep)