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Psych 101 Midterm 2 > States of Consciousness: Lecture 12 > Flashcards

States of Consciousness: Lecture 12 Flashcards

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1
Q

What are the 4 basic properties of consciousness

A
  • It is intentional, it has unity, it is selective, it is transient
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2
Q

What biological systems are involved in regulating our states of consciousness

A

circadian rhythms

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3
Q

What biological systems are involved in regulating our sleep?

A

Circadian Rhythms (sleep/wake clock)

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4
Q

What is the function of sleep

A

It serves a homeostatic function

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5
Q

What are the 4 stages of sleep

A

stage 1,2,3 and REM

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6
Q

What is the most familiar and most mysterious part of our lives?

A

consciousness

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7
Q

What is consciousness?

A

Awareness of Internal and/or external stimuli

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8
Q

What happens to your consciousness when you’re meditating?

A

You are less aware of external and more aware of internal stimuli

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9
Q

What happens to your consciousness when you’re day dreaming?

A

you are still conscious but you are not aware of internal or external stimuli

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10
Q

What is the consciousness continuum

A

On one side you have deep sleep (where you aren’t aware of stimuli). on the other side you have full consciousness (where you are fully aware of stimuli)

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11
Q

What makes it that we are not always aware of all stimmuli?

A

the reticular formation

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12
Q

What do we mean by consciousness is intentional?

A

it is always doing something

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13
Q

what do we mean by consciousness has unity

A

Takes information from all our senses. Integrates it into a unified experience

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14
Q

What do we mean by consciousness is selective?

A

includes some objects but no others. Filters out irrelevant information. Can tune into certain changes.

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15
Q

What was the cherry study about consciousness?

A
  • Participants did not notice the language in the left ear change from English to German
  • But they did notice when the voice in the left ear changed from male to female. Because it’s a more dramatic change in environment.
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16
Q

What do we mean by consciousness is transient?

A

It has a tendency to change

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17
Q

What is consciousness rooted in?

A

biology

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18
Q

What is the biology root of consciousness ?

A

Circadian rhythms

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19
Q

What are circadian rhythms?

A

biological rhythms that take place over 24 hour period
- sleep wake cycle (change in consciousness)
- Temperature
- Blood Pressure
- Heart rate
- concentration

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20
Q

What does the paneel gland do?

A

releases melatonin

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21
Q

What is the supra chiasmatic nucleus?

A

a bunch of nerves that are part of the hypothalamus that regulates our sleep

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22
Q

What does the supra chiasmatic nucleus do?

A

When there aren’t light signals it tells the paneel gland that we should be releasing melatonin to sleep.

23
Q

what is a homeostatic function?

A

Brings us back into physiological balance

24
Q

What are the 4 things homeostatic functions do?

A
  • restore resources used throughout the day (contested)
  • reduced predatory risk (contested)
  • healthy functioning (see next slides)
  • memory and learning
25
Q

How much sleep do we need?

A

somewhere between 7 and 9 hours

26
Q

What is sleep rebound?

A

if you stay up all night and sleep longer

27
Q

What is sleep debt?

A

Chronically getting fewer hours of sleep than we need

28
Q

What can sleep debt cause?

A

-decrease mental alertness
- Reduce cognition
- Depressive like symptoms
- Obesity
- increase blood pressure
- increase levels of stress
- reduce imune function
-increase risk of diabetes
-Hallucination

29
Q

What type of waves are in stage 1 of sleep?

A

alpha

30
Q

What happens in stage 1 of sleep?

A

lower frequency, higher amplitude (early stages of sleep. Relaxed but awake)

31
Q

What type of waves are in stage 2 of sleep?

A

Theta waves

32
Q

What happens in stage 2 of sleep?

A

lower frequency, higher amplitude (than alpha waves). If you wake someone up in this stage, they’ll say they weren’t asleep.

33
Q

What stage are sleep spindles in?

A

Stage 2.

34
Q

What are sleep spindles?

A

they are clusters of higher amplitude waves that we think are involved in learning and memory.

35
Q

What stage are k complexes in?

A

stage 2

36
Q

What are k complexes?

A

spikes of waves, it’s your body’s last check in with the environment

37
Q

What type of waves are in stage 3?

A

Delta (lowest frequency highest amplitude)

38
Q

What happens in stage 3 of sleep?

A

Slow wave sleep. If you rob someone of this sleep they will have more difficulty regulating their emotions the next day and will feel pain more acutely. Some dreams occur in this stage (approx. 20%)

39
Q

What happens in REM sleep?

A

brain looks like it’s awake. You dream in this stage.

40
Q

What is REM sleep involved with?

A

-Learning and memory
-Emotion regulation (suppressing emotional salience of negative events)

41
Q

What happens when you wake someone during REM?

A
  • REM rebound (homeostatically regulated)
  • not the worst if woken during REM
  • They’ll be able to tell you about their dreams
42
Q

What percentage of dreams happen in REM sleep?

A

80%

43
Q

What did freud think dreams were?

A

The interpretation of dreams is the royal road to a knowledge of the unconscious activities of the mind (Freud)

44
Q

What were the 2 types of dream content freud identified

A

Latent Content (what the dream means)
Manifest content (What we dream)

45
Q

Do dreams happen in real time?

A

yes

46
Q

What are the modern thoughts on dreams?

A

-activation synthesis model
+responding to random firing in the brain
-Response to the external world
+ we dream about whats happening in our lives

47
Q

What is involved in a lot of our biological rhythms

A

the hypothlamus

48
Q

When light comes in from our eyes where does it go?

A

to the hypothalamus

49
Q

Where does the hypothalamus send light signals? why?

A

to the occipital lobe to be decoded

50
Q

Where does the supra chiasmatic nucleus direct signals to?

A

the paneel gland

51
Q

Where do hormones go?

A

into the blood system

52
Q

What are hormones released by?

A

glands (part of the endocrine system)

53
Q

How can the hypothalamus talk to the rest of the brain?

A

through the central nervous system and regulates the release of hormones through the endocrine system.

Psych 101 Midterm 2 (6 decks)

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