Sleep-Wake Cycle [True or False]

Question 1

The contradiction in paradoxical sleep is the fact that the brain is very active while many muscles of the body are deeply relaxed.

Answer 1

TRUE

Question 2

Biological clocks are very resistant to environmental influences.

Answer 2

FALSE

Question 3

The onset of sleep requires active brain processes.

Answer 3

TRUE

Question 4

Arousal (keeping you awake) seems to be regulated by a single structure in the brainstem.

Answer 4

FALSE

Question 5

EEG waves during stage IV sleep show larger amplitudes than waves during Stage II sleep because neurons are asynchronously (out of rhythm).

Answer 5

FALSE

Question 6

Orexin is not necessary for waking up, but it is for staying awake.

Answer 6

TRUE

Question 7

REM sleep depends on the relationship between serotonin and acetylcholine.

Answer 7

TRUE

Question 8

Compared to the early part of a night’s sleep, the later part includes a much smaller percentage of REM sleep.

Answer 8

FALSE

Question 9

Other species, such as dogs, can show narcolepsy.

Answer 9

TRUE

Question 10

Insomnia is one important factor contributing to our current obesity epidemic.

Answer 10

TRUE