Dr. Everett is observing Robert in a sleep lab. Dr. Everett intends to wake Robert up each time he begins REM sleep. Based on the electroencephalograph (EEG) recordings, Robert should be awakened each time the EEG shows
A)alpha-wave activity.
B)low-voltage, high-frequency beta waves.
C)the presence of sleep spindles.
D)theta-wave activity.

Question

Dr. Everett is observing Robert in a sleep lab. Dr. Everett intends to wake Robert up each time he begins REM sleep. Based on the electroencephalograph (EEG) recordings, Robert should be awakened each time the EEG shows ​
A)alpha-wave activity.
B)low-voltage, high-frequency beta waves. ​
C)the presence of sleep spindles. ​
D)theta-wave activity. ​

Quizplus · Accepted Answer

REM sleep is characterized by low-voltage, high-frequency beta waves, similar to those seen in the awake state, which is why B is the correct answer. Alpha waves are associated with relaxed wakefulness, sleep spindles occur during stage 2 non-REM sleep, and theta waves are seen in light sleep stages.

Dr Everett Is Observing Robert in a Sleep Lab