Which of the Following Statements Is True of Stage 4

question 47

Multiple Choice

Which of the following statements is true of Stage 4 sleep?

• A)It produces low-amplitude brain waves.
• B)It is the lightest stage of sleep.
• C)During Stage 4 sleep, the delta waves produced by the brain slow to about 0.5 to 2 cycles per second.
• D)During Stage 4 sleep, the delta waves produced by the brain have a frequency of 8 to 13 cycles per second.

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