Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Psych Unit 4 - Outcome 1 > Sleep as an altered state of consciousness > Flashcards

Sleep as an altered state of consciousness Flashcards

You may prefer our related Brainscape-certified flashcards:
Psychology 101 flashcards GRE® Psychology flashcards
1
Q

What is sleep?

A

naturally occurring state of altered consciousness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the 3 biological rhythms of sleep?

A
  • circadian
  • infradian
  • untradian
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the circadian rhythm?

A

the body functions and activities that occur in a cycle of 24 hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How long does the circadian rhythm last for?

A

24 hours

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the internal factors of the circadian rhythm?

A

(endogeneous)

= suprachiasmatic nucleus that is found in the hypothamulus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does the suprachiasmatic nucleus do?

A

controls levels of arousal and metabolism and hormones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What kind of hormones does the suprachiasmatic nucleus regulate?

A
  • melatonin
  • cortisol
  • adrenaline
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does cortisol do?

A

released by the suprachiasmatic nucleus

= regulates alertness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What does more cortisol mean?

A

high cortisol = high alertness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What does melatonin do?

A

released by the pineal gland
= more melatonin = more sleepy
= released when it is dark

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does adrenaline affect?

A

heart rate and blood pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are some external factors that affect the circadian rhythm?

A

light and dark

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are zeitgebers?

A

external factors that affect the circadian rhythm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does endogenous mean?

A

internal factors that affect the circadian rhythm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What detects that it is light?

A

light sensors in our eyes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What happens when our eyes sense that it is dark?

A

eye sensors detect that it is dark
= signals the suprachiasmatic nucleus that it is dark
= suprachiasmatic nucleus tells the pineal gland to release melatonin
= melatonin is released and makes us sleepy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Where is your internal body clock found?

A

in the hypothamulus

18
Q

What is a main environment cue that affects sleep?

A

light

19
Q

What is the ultradian rhythm?

A

our bodies activities in a cycle of less than 24 hours

20
Q

What is one cycle of the ultradin rhythm?

A

less than 24 hours

21
Q

What types of sleep does the ultradian rhythm have?

A

REM + NREM

22
Q

How many cycles of REM/NREM sleep do adults normally experience per night?

A

4-5 cycles

23
Q

What are some examples of a circadian rhythm?

A

= sleep-wake cycle
= body temperature
= alertness

24
Q

What are some examples of an ultradian rhythm?

A

REM and NREM

sleep cycles

25
Q

How long does one cycle of sleep last?

A

one cycle is both REM and NREM

= lasts 90 minutes

26
Q

What is a sleep cycle?

A

one period of REM and NREM

27
Q

What is NREM sleep?

A

makes up 80% of total sleep time

= stages of sleep not associated with rapid eye movement

28
Q

What happens in stage 1 of NREM?

A

Around 5 minutes
= decrease into true sleep
= enter hynogogic state (hypnic jerks = muscle twitches)

29
Q

What happens in stage 2 of NREM?

A

10-25 minutes but increases in length over time
= sleep spindles occur (rapid bursts of brainwaves)
= eyes stop rolling + muscles begin to relax
= believe we weren’t asleep

30
Q

What happens in stage 3 of NREM?

A

start of deep sleep
= harder to wake up = more groggy if woken
= heart rate and temperature continue to drop
= few minutes

31
Q

What happens in stage 4 of NREM?

A

deepest stage of sleep
= people are hardest to wake
= groggy when woken
= 20-40 minutes

32
Q

What is REM?

A

period of sleep where your eyes move rapidly for short bursts of time

33
Q

How often does REM occur in one night?

A

4-5 times

34
Q

What happens in REM sleep?

A

rapid eye movements
= irregular breathing
= body temperature is hard to control

35
Q

What does the body do during REM sleep?

A

nerve impulses are blocked from below the neck

= muscles don’t move

36
Q

What is a paradoxial sleep and why is it known as REM sleep?

A

Paradoxial = means the body appears to be calm on the outside but the brain is highly active

37
Q

Does dreaming occur in REM or NREM sleep?

A

REM

38
Q

What kind of sleep occurs in REM sleep?

A

light sleep

39
Q

What kind of periods occur during REM sleep?

A

lengthen and occur closer together as the night goes on

= 1-5 = 12-15 etc

40
Q

What stage of sleep will a sleeper only go through once in a night?

A

Stage 1 of NREM

41
Q

Stage 3 and 4 of NREM will tend to do what as the night progresses?

A

decrease

Psych Unit 4 - Outcome 1 (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions