REM sleep is associated with increased brain activity in which regions such as cortex, midbrain, and brainstem core?

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Multiple Choice

REM sleep is associated with increased brain activity in which regions such as cortex, midbrain, and brainstem core?

REM sleep shows widespread brain activation that makes the brain look more wake-like, especially in the cortex, midbrain, and brainstem regions. This elevated activity supports the vivid dreams and autonomic changes seen during REM. In contrast, non-REM sleep features more synchronized, slower activity with lower cortical metabolism, and Stage 2 is an intermediate non-REM stage with sleep spindles and K-complexes rather than the broad activation seen in REM. Wake has the highest overall brain activity, but it is not sleep. So the pattern of increased activity across cortex and brainstem during REM uniquely fits the description in the question.

REM sleep shows widespread brain activation that makes the brain look more wake-like, especially in the cortex, midbrain, and brainstem regions. This elevated activity supports the vivid dreams and autonomic changes seen during REM. In contrast, non-REM sleep features more synchronized, slower activity with lower cortical metabolism, and Stage 2 is an intermediate non-REM stage with sleep spindles and K-complexes rather than the broad activation seen in REM. Wake has the highest overall brain activity, but it is not sleep. So the pattern of increased activity across cortex and brainstem during REM uniquely fits the description in the question.

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