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Rem sleep is also known by this term because our

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REM sleep is also known by this term because our muscles are relaxed (except for minor twitches), but other body systems are quite active. ___________________ _____________________ 9. Psychedelic ("mind altering") drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input. _____________________ 10. Our awareness of our environment and ourselves. ________________________ 11. Opium and its derivatives, such as morphine and heroin. They depress neural activity, temporarily lessening pain and anxiety. ______________________ 12. The large, slow brain waves associated with deep sleep. __________________ _____________ 13. A sleep disorder characterized by temporary cessation of breathing during sleep and consequent reawakenings. ___________________ ________________
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14. A chemical substance that alters perception and mood. _____________________ _______________ 15. The presumption that the mind and the body are two separate and distinct entities that interact. ______________________ 16. According the Freud, the underlying but censored meaning of a dream. ___________________ ____________________ 17. The diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger doses before experiencing the drug’s effect. ___________________________ 18. The tendency for REM sleep to increase following REM deprivation. _________
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REM sleep is also known by this term because our muscles...

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