Brain states

Question 1

How many stages of sleep we have?

Answer 1

4 stages

Question 2

What is two main states of sleep?

Answer 2

Slow wave sleep (SWS) and rapid eye movement sleep (REM)

Question 3

How long last cycle of sleep and each part?

Answer 3

90 minutes, 75-80 of SWS and 10-15 of REM

Question 4

What keep us awake?

Answer 4

Neurotransmitters acetylcholine, norepinephrine, serotonin and glutamate

Question 5

What is factors that drive us to sleep?

Answer 5

Circadian system (time) and homeostatic system (time without sleep)

Question 6

What is circadian system regulated with?

Answer 6

Suprachiasmatic nucleus

Question 7

What chemical is important for sleep?

Answer 7

Adenosine

Question 8

What is insomnia?

Answer 8

Hard to fall asleep, wake up during night

Question 9

What is sleep apnea?

Answer 9

Airway muscles relax during sleep

Question 10

What is narcolepsy?

Answer 10

Sleep attacks during day

Question 11

What is arousal?

Answer 11

Motivation to do an action

Question 12

What is dopamine for?

Answer 12

Movement

Question 13

What is norepinephrine for?

Answer 13

Alertness

Question 14

What is serotonin for?

Answer 14

Emotion

Question 15

What is voluntary attention?

Answer 15

You choose what to focus on

Question 16

What is involuntary attention?

Answer 16

Distraction from your goal

Question 17

What is default mode network?

Answer 17

Parts of brain that turns on when you relax