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

Question

Quizplus · Accepted Answer

Stage 4 sleep is also known as delta sleep or slow-wave sleep, and during this stage, the brain produces delta waves that slow to about 0.5 to 2 cycles per second. This stage is characterized by deep sleep and is the stage where the body does most of its restorative processes. Options A and B are incorrect because stage 4 sleep produces high-amplitude brain waves and is the deepest stage of sleep, not the lightest. Option D is also incorrect because the frequency range mentioned (8 to 13 cycles per second) is actually associated with alpha waves, which are produced during relaxed wakefulness, not stage 4 sleep.

Which of the Following Statements Is True of Stage 4