Week 5 (A) - Complete

Question 1

What does an electroENCHEPHalogram (EEG) measure?

Answer 1

Summated brain wave activity

Question 2

What form of brain wave is present during ACTIVE EYES OPEN WAKEFULNESS?

Answer 2

Beta

13-30 Hz

Question 3

What form of brain wave is present during EYES CLOSED WAKEFULNESS?

Answer 3

Alpha

8-12 Hz

Question 4

Do alpha waves have a higher or lower frequency to beta waves?

Answer 4

Lower

Alpha = 8-12
Beta = 13-30

Question 5

What happens to your EEG signal when you sleep?

Answer 5

You get SYNCHRONY

High amplitude, low frequency

Question 6

What does an electroOCULOgram measure?

Answer 6

Eye movements

Question 7

What does an electroMYOgram measure?

Answer 7

Muscle tone

Question 8

In non-REM sleep, what are the FOUR things you see present in the EEG record?

Answer 8

1. Theta activity

2 Delta activity

3. K complexes
4. Sleep spindles

Question 9

What stages of sleep are referred to as SLOW WAVE SLEEP (SWS)?

Answer 9

Stages 3 and 4 of non-REM sleep

Question 10

During non-REM sleep, what is the character of the respiration and heart rate?

Answer 10

1. Light, even

2. Regular

Question 11

During non-REM sleep, muscle tone is higher than wakefulness, T/F

Answer 11

FALSE

Question 12

During non-REM sleep, what is the character of cognitive activity?

Answer 12

Thought like, rational

Question 13

It is easy to rouse someone from short wave sleep (SWS), T/F

Answer 13

FALSE

Question 14

In REM sleep, the EEG patter in synchronised, T/F

Answer 14

FALSE

Question 15

In REM sleep, what is happening with respiration and blood pressure

Answer 15

Enhanced and variable

Question 16

In which sleep stage will you find Pontine - Geniculate-Occipital (PGA) waves?

Answer 16

REM sleep

Question 17

In REM sleep, what happens with muscle tone

Answer 17

Loss of muscle tone

Paralysis, except breathing and eye muscles

Question 18

In which stage of sleep do you have vivid, emotional dreams?

Answer 18

REM

Question 19

What portion of the night do we spend in Stage 2 (N2) non-REM sleep?

Answer 19

45%

Question 20

What portion of the night do we spend in REM sleep?

Answer 20

25%

Question 21

What portion of the night do we spend in Stage 3 & 4 (N3) non-REM sleep

Answer 21

25%

Question 22

What portion of the night do we spend in Stage 1 (N1) non-REM sleep?

Answer 22

5%

Question 23

What is the frequency (Hz) in Stage 1 and 2 (N1 & 2) of non-REM sleep?

Answer 23

4-8

THETA

(and in

Question 24

What is the frequency (Hz) in Stage 1 and 2 (N1 & 2) of non-REM sleep?

Answer 24

4-8

THETA

(and in N2, also spindles and K. complexes)

Question 25

What is the frequency (Hz) in REM sleep?

Answer 25

4-8 THETA

Question 26

What is the frequency (Hz) in Stage 3 and 4 (N3) of non-REM sleep?

Answer 26

0.5-2 DELTA & THETA

Question 27

Which stage of sleep do you find SPINDLES and K COMPLEXES?

Answer 27

Stage 2 (N2) of non-REM sleep

Question 28

What stage of the sleep cycle do you find BETA waves?

Answer 28

Active wakefulness

Question 29

What is covered by the BORBLEY 2 FACTOR MODEL

Answer 29

The two processes by which sleep is regulated

Question 30

Which sleep stage reflects the homeostatic process (Process S)?

Answer 30

Slow wave sleep (SWS)

Question 31

What was Jean-Jacques d’Ortous de Mairan all about?

Answer 31

Circadian rhythm (Process C)

Question 32

What kind of curve does Process S operate on? | Homeostatic process

Answer 32

Increases exponentially during wakefulness and decreases exponentially during sleep

Question 33

What kind of curve does Process C operate on? | Circadian process

Answer 33

Sine wave

Question 34

What defines the 'propensity to sleep'? (sleepiness)

Answer 34

The magnitude of the difference between circadian and homeostatic curves

Question 35

More synchronised means brain waves take on what qualities?

Answer 35

Larger and slower

Question 36

What time intervals do we typically measure sleep?

Answer 36

30 second intervals (or epochs)

Question 37

Is REM more synchronous or de-synchronous than non-REM?

Answer 37

de-synchronous As evidenced by the beta waves

Question 38

How many microvolts does a k complex need to be before it's a K complex?

Answer 38

75 micro volts