MCAT Behavioral Sciences Question 50: Answer and Explanation

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Question: 50

5. EEG waveforms during REM sleep most resemble which of the following states of consciousness?

  • A. Alertness
  • B. Slow-wave sleep
  • C. Stage 1 sleep
  • D. Meditation

Correct Answer: A

Explanation:

EEG during REM is composed mainly of beta waves, which are present during alertness. SWS, choice (B), consists mainly of delta waves, which are not typically present during REM sleep. Stage 1 sleep, choice (C), consists mainly of theta waves. Meditation, choice (D), is quieting of the mind, and consists mainly of slow alpha and theta waves.

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