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6. which does NOT produce natural sleep patterns & are weakly hypnotic

  • Morphine
  • .
  • Melatonin
  • Tryptophan

7. which is a Circannual rhythms

  • respiration
  • sleep/wake cycle
  • mating behavior
  • heart rate

8. which statement is true

  • EEG of someone sleeping indicated that neurons in cortex aren’t quiescent but very active
  • EEG of someone sleeping indicated that some neurons in the cortex die
  • EEG of someone sleeping indicated that neurons in cortex are very quiescent
  • EEG of someone sleeping indicated that neurons are queicent and developing connections

9. Under continuous light a normal human would

  • Maintain a sleep-wake cycle with a periodicity of greater than 24 hours
  • maintain a sleep-waking cycle with a 24 hour periodicity
  • Fail to maintain a sleep-wake cycle
  • Maintain a sleep-wake cycle with a periodicity of less than 24 hours