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Across 2. a sleep disorder in which a person has trouble breathing while asleep. (2 Words) 4. a condition characterized by suddenly falling asleep or feeling very sleepy during the day 7. the focusing of attention to clear one’s mind and produce relaxation 11. A state of consciousness resulting from a narrowed focus of attention and characterized by heightened suggestibility 13. chemicals that affect the central nervous system and result in altered consciousness (2 Words) 14. drugs that often produce hallucinations 15. a stage of sleep characterized by rapid eye movements, a high level of brain activity, a deep relaxation of the muscles and dreaming. (2 Words) 16. the process of learning to control bodily states with the help of machines monitoring the states to be controlled 17. perceptions that have no external cause 18. the dried leaves and flowers of Indian Hemp (Cannabis Sativa) that produce an altered state of consciousness when smoked or ingested

Down 1. the failure to get enough sleep at night in order to feel rested the next day 3. A suggestion made during hypnosis that influences the participant's behavior afterward (2 Words) 5. the rhythm of activity and inactivity lasting approximately one day (2 Words) 6. a potent psychedelic drug that produces distortions of perception and thought 8. Sleep disorder that occurs during Stage IV of sleep, involving screaming, panic, or confusion (2 Words) 9. a state of awareness, including a person’s feelings, sensations, ideas, and perceptions 10. Walking or carrying out behaviors while asleep (2 Words) 12. unpleasant dreams