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Sleep and Dreaming

AP Psychology· difficulty 4/5

NREM sleep is characterized by

  • A

    Deep, slow-wave brain activity (especially stages 3-4)

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  • B

    Vivid dreaming and temporary paralysis of voluntary muscles

  • C

    Light dozing with hypnagogic imagery and brief muscle jerks

  • D

    Rapid eye movement and brain activity resembling wakefulness

Explanation

Stages 1-4 of NREM precede REM cycles; deepest sleep occurs in stages 3-4.

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