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sleep and dreams Flashcards

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1
Q

Circadian Rhythm

A

a rhythm of activity and inactivity lasting about a day and is regulated by sunshine

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2
Q

Suprachiasmatic nucleus (scn)

A

a pair of 10,000 cell clusters the size of a grain of rice in the hypothalmus

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3
Q

how does the scn work?

A

-bright light activates the sensitive retinal proteins
- these proteins then trigger the scn
- then the scn causes the brain’s pinneal gland to either increase or decrease the production of melatonin

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4
Q

circadian desynchronization

A

jet lag

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5
Q

what are some benefits of sleep

A

saves energy, allows for restorative functions to take place, strengthens learning and memory.

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6
Q

how long do infants need to sleep?

A

16 hours

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7
Q

how long do kids need to sleep

A

10 hours

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8
Q

how long do adults need to sleep

A

7 hours

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9
Q

how long do elders need to sleep

A

4-5 hours but lots of naps

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10
Q

effects of sleep deprivation

A

immune system is affected, depression, relationship issues, difficulty focusing, weight gain, slow reactions, moody, hallucinations, shortened life span/death

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11
Q

what happens when we sleep

A

dna repaired, bodies replenish for day ahead

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12
Q

sleeplessness affects

A
  • learning
    -mood
    -memory
    -reaction time
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13
Q

what is an eeg used for in this unit?

A

measure someone while sleeping

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14
Q

what happens in stage 1 of sleep?

A

alpha waves (close together waves with no big dips)

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15
Q

what happens in stage 2 of sleep?

A

SPINDLES, waves become more spread out

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16
Q

what happens in stage 3 of sleep?

A

waves become even more spread out

17
Q

what happens in stage 4 of sleep?

A

delta waves (large slow brain waves) this is deep sleep

18
Q

what is the order of sleep stage cycle

A

stage 1 : stage 2: stage 3: stage 4: stage 3: stage 2: REM

19
Q

how long does a sleep stage cycle last?

A

90-120 minutes

20
Q

what percentage of your sleep is spent in the REM stage?

A

25%

21
Q

who discovered the REM stage and when

A

william dement and nathaniel kleitman in 1953

22
Q

why is REM paradoxial sleep

A

because it is the lightest stage of sleep but also the deepest

23
Q

why is REM considered a light stage of sleep

A

because the brain is more active, you are easily woken up, and your temperature and heart rate fluctuate

24
Q

why is REM considered a deep stage of sleep?

A

because your major muscle groups are literally paralyzed

25
Q

Insomnia

A

inability to fall asleep

26
Q

Narcolepsy

A

sudden attacks of overwhelming sleepiness

27
Q

sleep apnea

A

stopping breathing repeatedly while sleeping

28
Q

REM sleep behavior disorder

A

physically acting out your dreams

29
Q

night terrors

A

appearing terrified, screaming, talking nonsense, sitting up or walking around, difficult to wake, mostly in children, OCCURS IN STAGE 4

30
Q

how to sleep better

A

cool dark room
no caffeine after 2pm
bed = only for sleeping

31
Q

Psychoanalysis theory

A

Dreams are unconscious wishes (FREUD)

32
Q

what are the two parts of the psychoanalysis theory

A

maifest content - litersally what the dream was
latent content - hidden meaning, moral of dream

33
Q

activation synthesis

A

dreams have no meaning but is just your brain trying to make sense of the world and what is happening when you are asleep (dreams where you can’t walk, dreams about falling, hearing real sounds in your dreams)

34
Q

Information processing theory

A

dreams involving what happened in your day, what you have watched/read recently, etc. all mixed into one dream

35
Q

what CAN hypnosis do?

A
  • pain management
  • break bad habits (posthypnotic suggestion)
36
Q

what can hypnosis NOT do?

A
  • make you do something you don’t want to
  • enhance memory

ap psych (11 decks)

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