Sleep and dreaming Flashcards

(36 cards)

1
Q

How long does one sleep cycle take?

A

90 minutes

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2
Q

What is in 1 sleep cycle?

A

Stages 1-4 + REM

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3
Q

What happens in stage 1:Sleep onset

A

Light sleep
Can be woken easily
Muscles less active

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4
Q

What happens in stage 2:Late night

A

Eye movements drop
Body temperature drops
Heart rate slows

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5
Q

What happens in stage 3:Deep sleep

A

Hard to be woken up

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6
Q

What happens in stage 4:Deeper sleep

A

Very hard to be woken up
Where sleep walking occurs
Can feel very disorientated when woken up

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7
Q

What happens in REM sleep?

A

Rapid eye movement
Where dreaming occurs
Movement inhibition
Sensory blockade

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8
Q

How many sleep cycles on average do you go through every night

A

6

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9
Q

What happens when you are sleep deprived?

A

Brain chemistry goes out of balance
Can gain weight
Not be able to function properly

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10
Q

What is a circadian rhythm?

A

Human body rhythms that have a daily sleep wake cycle

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11
Q

What is an ultradian rhythm?

A

A rhythm that occurs more than once in a 24 hour period

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12
Q

What is the SCN?

A

Controls circadian rhythms
Set by external triggers

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13
Q

What is an exogenous zeitgeber?

A

Environmental cues that regulate our sleep wake cycle

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14
Q

What are some internal influences on sleep?

A

Adrenaline- Makes us feel alert
Cortisol- Released when we feel stressed

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15
Q

What are some external influences on sleep?

A

Light and medication

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16
Q

What is insomnia?

A

Problems with sleep

17
Q

Acute insomnia

A

Brief periods of problems with sleep

18
Q

Chronic insomnia

A

Problems with sleep for 3 or more nights a week

19
Q

Symptoms of insomnia

A

Difficulty falling asleep
Waking up a lot during the night
Unable to concentrate

20
Q

What can cause insomnia?

A

Medication
Lifestyle- Including lots of night shifts

21
Q

What is Narcolepsy?

A

Disorder where someone has no control over their sleep wake cycle

22
Q

Symptoms of narcolepsy

A

Excessive sleepiness
Hallucinations
Sleep paralysis

23
Q

What causes narcolepsy?

24
Q

What is Freud’s theory of dreaming?

A

Dreams involve symbols that mean things and need to be analysed by a psychologist

25
Where are unconscious wishes and desires held?
ID 'I want'
26
What is superego?
'you cannot have'
27
What is ego?
Balance between superego and ID
28
What is manifest content?
The story the dreamer tells upon waking up
29
What is latent content?
Meaning behind the dream
30
What is dreamwork?
The way the mind keeps unconscious thoughts hidden during dreaming, also uncover meaning behind dreams Condensation, displacement and secondary elaboration
31
What were Freud's 3 stages of psychosexual developement?
Oral Anal Phallic
32
What is the oedipus complex?
Little kids develop sexual feelings towards oppsite gendered parent
33
What were little Hans 3 main dreams?
Horse dream Early dream-Mother left Giraffe dream
34
What happened to Siffre 6 months after living in a cave?
Became depressed Sleep wake cycle varied from 18-52
35
What is the activation synthesis theory?
Brain is active during sleep and random activity takes place. Brain then tries making sense of this by mixing it with existing schemas turning it into dreams
36
What does activation mean?
Random thoughts sent within brain during REM sleep