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Unformatted text preview: 3) In stage 4 sleep, brain waves low in frequency and high in amplitude are known as ________. A) delta waves. B) sega waves. C) alpha waves. D) mega waves. E) beta waves. 4) The first REM dream of the night generally A) lasts only a few seconds. B) occurs at the end of the second or third sleep cycle. C) is a nightmare. D) occurs after about 90 minutes. E) lasts for about an hour. 5) A drug that is consumed primarily for the purpose of experiencing drastic changes in mood, thought, and perception is termed a(n) A) analgesic. B) depressant. C) hypnotic. D) stimulant. E) psychedelic. 1) C 2) B 3) A 4) D 5) E...
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