Across
- 4. vivid dreams commonly occur during this stage (23)
- 5. problems in falling or staying asleep (24)
- 9. biological clock (23)
- 11. our awareness of ourselves & our environment (22)
- 16. sequence passing through sleeping person's mind, difficulty remembering later (24)
- 17. altered state of consciousness after close brush with death (25)
- 19. alcohol use marked by tolerance, withdrawal, and a drive to continue problematic use (25)
- 20. acid, powerful hallucinogenic drug (25)
Down
- 1. false sensory experience (23)
- 2. diminishing effect with regular use of same dose of a drug (25)
- 3. underlying meaning of a dream (24)
- 6. psychoactive drug in tobacco, stimulant (25)
- 7. sleep disorder characterized by high arousal and appearance of being terrified (24)
- 8. all sleep stage except for rem sleep (23)
- 10. rem sleep increase caused by rem sleep deprivation (24)
- 12. sleep disorder characterized by cessations of breathing and momentary awakenings (24)
- 13. remembered story line of a dream (24)
- 14. continued substance craving (25)
- 15. controls circadian rhythm (23)
- 18. compulsive craving of drugs (25)