Question

Why is REM sleep referred to as paradoxical sleep?

1) The body (except for the eyes and respiratory muscles) is immobilized.
2) The EEG for REM sleep is almost indistinguishable from an active, waking brain.
3) Vivid, detailed illusions called dreams are conjured during REM sleep.
4) Rapid eye movements occur during REM sleep.

Answer 1

REM sleep is referred to as paradoxical sleep because of the combination of high brain activity and lack of muscle tone. During this stage, the body is immobile, rapid eye movements occur, and vivid dreams are experienced.

Step-by-step explanation:

REM sleep is referred to as paradoxical sleep due to the combination of high brain activity and lack of muscle tone. During REM sleep, the body (except for the eyes and respiratory muscles) is immobilized, and rapid eye movements occur.

The brain waves observed during REM sleep are similar to those seen when a person is awake, and vivid dreams are experienced.