You are watching sleep researchers monitor the sleep of a normal adult.The participant is hooked up to an EEG.What brain waves would you observe as the person becomes drowsy and then
Enters the first stage of sleep?
A)alpha waves eventually replaced by delta waves
B)delta waves eventually replaced by theta waves
C)alpha waves eventually replaced by theta waves
D)delta waves eventually replaced by beta waves

Question

Quizplus · Accepted Answer

When a person becomes drowsy, alpha waves are observed in the EEG. As the person enters the first stage of sleep, the alpha waves are eventually replaced by theta waves. Delta waves are observed in deeper stages of sleep. Beta waves are observed when a person is awake and alert. Therefore, option C is the best choice as it correctly describes the sequence of brain wave patterns during the transition from drowsiness to the first stage of sleep.

You Are Watching Sleep Researchers Monitor the Sleep of a Normal