Refer to the Figure

question 97

Multiple Choice

Refer to the figure. The figure shows electroencephalogram (EEG) recordings from a person who is awake and in different stages of sleep.Which of the following explains why EEG recordings show similar patterns when a person is awake and in REM sleep?

• A) At least some brainstem nuclei are active in both phases.
• B) Synchronized bursts of action potentials occur over broad areas of cortex during both phases.
• C) Eye movements are similar in both phases.
• D) The amounts of time that humans spend awake and in REM sleep are similar.
• E) Activity of motor pathways is the same in both phases.

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