After Mark has gone through one full sleep cycle,his heart beats faster,his breathing becomes fast and irregular,and his closed eyes begin to move back and forth.A researcher who is monitoring Mark's EEG activity will most likely see ________ waves.
A) theta
B) delta
C) alpha
D) beta

Question

Quizplus · Accepted Answer

The description of fast and irregular breathing, rapid eye movement, and increased heart rate corresponds to the REM (Rapid Eye Movement) stage of sleep. During REM sleep, the brain's activity is similar to that during wakefulness, which is characterized by beta waves on an EEG. Beta waves are associated with an awake, alert state of mind.

After Mark Has Gone Through One Full Sleep Cycle,his Heart