1. All About Sleep

2. Cycles of Sleep
• Deep Sleep: Restful for body and brain
• Rapid eye sleep (Paradoxical):
• Body vs Brain
• Brain waves look very similar to those of
brain activity during the day
• Difference between the real world and
dreaming

3. • The eyes and
the actions in
a dream are a
direct
comparison
• Short term
memory cut
off

4. Rem Sleep
• Brain development
Newborns: 16 hours/day
Adults: 1.5 hours/day
• Dream action = Real action

5. • Practice human
survival skills
• 2 signal are sent

6. 6

7. • Gets blocked at
spinal cord
• Good for humans
health wise
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8. Chemicals
• Dreaming vs Real world
- Non-Rem sleep: ½
- Rem sleep: 0
• Melatonin (Jet-lag)

9. • Activated: certain areas of the cortex
• emotions (ex: ecstasy)
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10. • Frontal Cortex (less
act.)
• No thought
• Bizarreness in
dreams
• No guidance

11. Sleepwalking
• Asleep + motor output fires up
• Slow wave cycle of sleep (NREM)
• Little activity in brain

12. • Night terrors
• Activities done during the day can
happen during sleepwalking
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13. Theories
• #1: What you see is what you get
• #2: A lot of dreams are overblown to
emphasize important memories