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Where in the brain would you find the reticular formation?
brain stem
The hormone melatonin is secreted from which brain structure?
The pineal gland.
In mammals, which brain area is most associated with biological rhythms?
Suprachiasmatic nucleus
How long is a typical free-running period in humans?
25 hours
Many researchers believe that the function of sleep is:
not clear
The EEG patterns typical of waking stages of consciousness are:
alpha and beta
Dreams ONLY occur during
None of these
Dement and Kleitman (1957) found that when most people were woken up during REM sleep, they:
reported dreaming
A complete cycle through all sleep stages takes approximately _____ minutes.
90 mins
As sleep cycles progress over the course of an average night, the amount of time spent in REM sleep:
Increases
When Frederic Bremer lesioned the brain stem in cats where it joined the spinal cord (the encéphale isolé preparation) and recorded electrical activity from the cortex, he found that this operation:
had no effect on cycles of sleep and waking.
Alpha EEG waves are _____ than beta EEG waves.
slower
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