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a. beta b. alpha c. theta d. sleep spindles e. delta A single cycle of non-REM and REM sleep lasts about a. 10 minutes. b. 30-40 minutes. c. 90 minutes. d. 360 minutes. e. 8 hours. Which of the following is true of human sleep cycles? a. Sleep cycles are random across the night. b. Subjects first enter REM sleep and then transition to non-REM sleep. c. As the night goes on, the relative length of REM sleep increases in each successive cycle. d. Stages 3 and 4 of slow-wave sleep mostly occur in the early morning hours. e. Each non-REM/REM cycle lasts about 45 minutes. Humans show which pattern of blood flow and mental activity during REM sleep? a. Cortical blood flow is reduced during REM sleep as blood is shunted to the genitals. b. Cerebral blood flow is low in the primary visual cortex. c. Cerebral blood flow is very low during color dreaming. d. Cerebral blood flow is high in the visual association cortex and low in the frontal cortex. e. Cerebral blood flow is low in the primary auditory cortex. The predictable changes in blood flow to the male genitals that occur during ________ can be a useful clinical indicator of ________. a. non-REM sleep; narcolepsy b. the day hours; hypertension c. REM sleep; impotence d. slow-wave sleep; cardiac failure e. the day hours; cocaine abuse Which of the following terms belong together? a. awake state; EEG synchrony b. REM sleep; slow-wave EEG pattern c. slow-wave sleep; marked genital arousal d. REM sleep; lack of genital activity e. slow-wave sleep; moderate muscle tonus Which of the following represents a mental state that accompanies slow-wave sleep? a. nightmares b. lyrical dreams c. elevated sexual arousal (i.e., lust) d. a deficit in the capacity to plan e. narrative and story-like dreams Nightmares that are particularly terrifying occur during ________ sleep. a. stage 1 of slow-wave b. high-frequency c. stage 4 of slow-wave d. paradoxical e. REM During REM sleep, there is a high level of activity within the a. visual association cortex b. prefrontal cortex. c. hippocampus. d. amygdala. e. temporal cortex. About ________ percent of the population experiences insomnia as a persistent problem while ________ percent experiences this on occasion. a. 1; 3 b. 15; 52 c. 27; 45 d. 7; 19 e. 9; 25 Insomnia is defined a. as the inability to fall asleep within 5 minutes of going to bed. b. as awakening four or more times during the night. c. as a problem in rapidly reaching REM sleep. d. in relation to a person’s particular sleep needs. e. as a relative lack of slow-wave sleep compared to REM sleep. A person who does not feel rested after sleeping 15 hours a night a. is probably sleeping at his or her desk during the day. b. probably does not need more sleep. c. has pseudoinsomnia. d. is underestimating the amount of sleep time he or she needs.
e. is likely to develop a serious form of insomnia.