In general terms, how do brain waves change as a sleeper progresses from Stage 1 sleep to Stage 4 sleep?
A)Their frequency decreases and their amplitude increases.
B)Their frequency increases and their amplitude decreases.
C)Both their frequency and their amplitude decrease.
D)Both their frequency and their amplitude increase.

Question

Quizplus · Accepted Answer

As a sleeper moves from Stage 1 to Stage 4 sleep, the brain waves slow down, meaning their frequency decreases, and they become larger, indicating an increase in amplitude. This reflects the transition from light to deep sleep.

In General Terms, How Do Brain Waves Change as a Sleeper