Brief periods of 'spiky' brain wave patterns called sleep spindles are characteristic of ___ sleep.
A) Stage 1
B) Stage 2
C) Stage 4
D) REM

Question

Quizplus · Accepted Answer

Sleep spindles are characteristic of Stage 2 sleep, which is characterized by bursts of rapid, rhythmic brain wave activity known as sleep spindles. Stage 1 sleep is a transition stage from wakefulness to sleep and is characterized by slower, more irregular brain waves. Stage 4 sleep is the deepest stage of non-REM sleep with slow, synchronized brain waves. REM sleep is characterized by rapid eye movements, muscle paralysis, and vivid dreams, but not by sleep spindles.

Brief Periods of 'Spiky' Brain Wave Patterns Called Sleep Spindles