CNS temperature increases and motor responsiveness is atonic during:
A)stage 1 of sleep.
B)wakefulness.
C)non-REM sleep.
D)REM sleep.

Question

Quizplus · Accepted Answer

During REM sleep, CNS temperature increases and motor responsiveness is atonic (or temporarily paralyzed). This is believed to be a protective mechanism that prevents the sleeper from acting out their dreams and potentially causing injury to themselves or others. In contrast, during non-REM sleep, motor activity can be present and the CNS temperature may decrease. Wakefulness also typically involves higher motor responsiveness and a stable CNS temperature. Stage 1 of sleep may involve some motor relaxation and a slight decrease in CNS temperature, but these changes are not as pronounced as during REM sleep.

CNS Temperature Increases and Motor Responsiveness Is Atonic During