Stage 2 non-REM sleep is characterized by the presence of which of the following?
1)Relatively low-voltage,mixed-frequency waves
2)Sleep spindles
3)Delta waves
4)K-complexes
A) 1 and 3
B) 2 and 4
C) 1 and 4
D) 2,3,and 4

Question

Quizplus · Accepted Answer

Stage 2 non-REM sleep is identified on a sleeper's electroencephalogram by the appearance of sleep spindles and K-complexes.Relatively low-voltage,mixed-frequency waves occur during non-REM stage 1 sleep.Delta waves are present during slow-wave sleep or non-REM sleep stages 3 and 4.

Stage 2 Non-REM Sleep Is Characterized by the Presence of Which