You are watching the sleep record of a person whose record contains 85% delta wave activity. Your best guess is that this person is
A) in stage 3 of slow-wave sleep.
B) dreaming.
C) in stage 1 of slow-wave sleep.
D) making the transition from wakefulness to sleep.
E) awake.

Question

Quizplus · Accepted Answer

Delta waves are the slowest and largest brainwaves associated with deep (slow-wave) sleep. Stage 3 of slow-wave sleep (also known as N3) is characterized by at least 20% delta wave activity. As the person's record contains 85% delta wave activity, it is most likely that they are in stage 3 of slow-wave sleep.

You Are Watching the Sleep Record of a Person Whose