Lecture 9: Intro to Sleep

Question 1

List 3 means of measuring sleep and what they record

Answer 1

1. electroencephalogram (EEG) - summated brain wave activity
2. electooculogram (EOG) - eye movements
3. electromyogram (EMG)- muscle tone

Question 2

What EEG wave type is associated with wakefulness?

Answer 2

beta - awake

alpha - relaxed

Question 3

What EEG wave type is associated with non-REM stage 1?

Answer 3

theta

Question 4

What EEG wave type is associated with non-REM stage 2?

Answer 4

theta, spindles, K-complexes

Question 5

What EEG wave type is associated with non-REM stage 3/4?

Answer 5

delta, theta

Question 6

What EEG wave type is associated with REM?

Answer 6

theta

Question 7

During REM sleep, eye movements are ________, respiration and blood pressure are ________ and ________. These physiological variables are said to match _________. There is a _____ of muscle tone and signs of _______ arousal.

Answer 7

rapid; enhanced; variable; dream content; loss; sexual

Question 8

During non-REM sleep, respiration and _________ are _____ and even. Muscle tone is ______ than when awake. Cognitive activity is _____ and ______-like.

Answer 8

heart rate; light; lower; rational; thought

Question 9

List and explain Borbley’s two factors of sleep control

Answer 9

1. homeostatic - regulatory processes to ensure adequate quantities of sleep
2. circadian - 24 (+) hour endogenous cycle cued by external light