After your university gets a new PET scanner, you decide you want to do a PET scan study to confirm earlier research about how brain activity during REM sleep differs from brain activity during wakefulness. The results of your study reconfirm the earlier research and show that:
A) REM sleep involves less activity in the frontal lobes and primary visual cortex than wakefulness.
B) brain activity during REM sleep is virtually identical to brain activity during wakefulness.
C) REM sleep involves more activity in the frontal lobes and primary visual cortex than wakefulness.
D) with the exception of brain areas that control heartbeats and breathing, almost all of the brain is deactivated during REM sleep.

Question

Quizplus · Accepted Answer

The study confirms earlier research which showed that brain activity during REM sleep involves less activity in the frontal lobes and primary visual cortex than during wakefulness. Option B is incorrect as it contradicts the study's findings. Option C is also incorrect as it suggests an increase in activity in these areas during REM sleep, which is not supported by the study's results. Option D is also incorrect as it suggests that almost all of the brain is deactivated during REM sleep, which is not supported by the study's findings.

After Your University Gets a New PET Scanner, You Decide