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8. What does a polygraph (lie detector) do? Chapter 5 9. Consciousness is . is the awareness of internal and external stimuli. is not affected by sleep/wake cycles. c. involves your awareness of thoughts about your experiences. d. both (a) and (c). 10. During which stage of sleep are you most likely to dream? a . Stage 1 b. Stage 2 c. REM sleep d. Both (b) and (c). 1 1. These waves dominate "slow wave" sleep (stage 3). 12. What is it called when elements from your real life seep into your dreams? 13. According to sleep research, an important function of slow wave and REM sleep is 14. According to Freud, we dream because 15. During REM sleep, sleepwalking is highly unlikely because