Sleep 2
Terms
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- Stage 1 sleep
- 5-7 minutes, theta waves, easy to wake up
- Stage 2 sleep
- between 10 and 35 minutes, sleep spindles (spikes on EEG)
- Deep Sleep
- 30 minutes after falling asleep, lasts for 30 minutes, delta waves
- REM
- on the EEG, it looks like you're awake; breathing and heart rate are irregular; you are virtually paralyzed, this is when you dream; go into REM 4 times
- Deprive people of REM...
- Large rebound
- Evolutionary theory as to why we sleep
- Night was dangerous and dark; safer if you were sleeping...reduces the chances of falling off a cliff
- Restoration theory of sleep
- Restores our physical health; when we lose sleep, our immune system decreases
- Consolidation Theory of sleep
- restoring cognitive health; we synthesize what we've learned while we sleep
- Freud's Theory on Dreams
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Wishf fulfillment
We have unconscious motivation - dreams are too threatening for us to be aware of...so we keep them at bay
Manifest content (what is dreamed)
Latent content (what dreams mean) - Cartwright's Theory on Dreams
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"Problem solving"
Dream about what we think about durying the day - dream about problems, not solutions (criticism) - Emotional Valance
- 2 times more likely to dream about sad or negative things