In 1929, the _____________ made non-invasive study of the brain possible.
(1 point)
Responses
positron emission tomography (PET) scan
positron emission tomography (PET) scan
computed tomography (CT) scan
computed tomography (CT) scan
electroencephalograph (EEG)
electroencephalograph (EEG)
X-ray
X-ray
Although there are few definitive answers, researchers do believe that REM sleep is important in ________________.
(1 point)
Responses
maintaining life
maintaining life
the function of the vital organs
the function of the vital organs
consolidating memory
consolidating memory
developing a high IQ
consolidating memory
How long does non-REM sleep last?
(1 point)
Responses
60-90 minutes
60-90 minutes
80-120 minutes
80-120 minutes
90-110 minutes
90-110 minutes
90-120 minutes
90-120 minutes
How many cycles of sleep are typical per night?
(1 point)
Responses
3-4
3-4
4-5
4-5
6-8
6-8
8-10
4-5
Based on your knowledge of the different sleep cycles, which of the following is the best explanation of REM sleep as “paradoxical” sleep?
(1 point)
Responses
Because the sleep stages over and over again in a cycle
Because the sleep stages over and over again in a cycle
Because we need it to survive, yet it can cause us harm
Because we need it to survive, yet it can cause us harm
Because we have dreams that we do not remember
Because we have dreams that we do not remember
Because the brain is in a heightened state of excitement, while the body is virtually immobile
Because the brain is in a heightened state of excitement, while the body is virtually immobile
In which stage of sleep are you if your eyes are closed, but if aroused, you may feel like you have not slept?
(1 point)
Responses
stage 1
stage 1
stage 2
stage 2
stage 3
stage 3
stage 4