As sleepers enter deeper sleep stages,their brain waves
A) increase in complexity.
B) decrease in amplitude.
C) decrease in frequency.
D) increase in frequency.

Question

Quizplus · Accepted Answer

As sleepers enter deeper sleep stages, their brain waves decrease in frequency. This is because the slower brain waves of deeper sleep stages, such as stage 3 and 4, have lower frequencies than the faster brain waves of lighter sleep stages or wakefulness.

As Sleepers Enter Deeper Sleep Stages,their Brain Waves