The transition from drowsy wakefulness to Stage 1 NREM sleep can usually be determined by the presence of more _________ wave activity.
A)beta
B) delta
C)alpha
D)theta

Question

The transition from drowsy wakefulness to Stage 1 NREM sleep can usually be determined by the presence of more _________ wave activity.
A)beta 
B) delta​ 
C)alpha 
D)theta

Quizplus · Accepted Answer

Theta waves are characteristic of drowsy or light NREM sleep, whereas delta waves are more prevalent in deeper stages of NREM sleep. Alpha waves are typically present in wakefulness and relaxation, while beta waves are associated with alertness and active thinking.

The Transition from Drowsy Wakefulness to Stage 1 NREM Sleep