Across
- 3. cell clusters in hypothalamus
- 6. chemical that alters perceptions and moods
- 8. synthetic stimulant and mild hallucinogen
- 9. sleep disorder, temporary cessations of breathing
- 10. recurring problems in falling or staying asleep
- 11. drugs that depress central nervous system
- 12. sleep disorder, uncontrollable sleep attacks
- 14. relatively slow brain waves of relaxed
- 15. underlying meaning of a dream
- 17. rapid eye movement sleep
- 18. our awareness of ourselves and our environment
- 20. false sensory experience
Down
- 1. compulsive craving of drugs or certain behaviors
- 2. non rapid eye movement sleep
- 4. drugs that stimulate neural activity
- 5. biological clock
- 7. opium and its derivatives
- 9. drugs that excite neural activity
- 13. discomfort that follows discontinuing addictive
- 16. drugs that reduce neural activity
- 19. a split in consciousness