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Workings of the Mind > Sleeping and Dreaming > Flashcards

Sleeping and Dreaming Flashcards

1
Q

Predation Avoidance

A

Desire to sleep reduced when threats are percieved (hotel room, unfamiliar environment)

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2
Q

Memory Consolidation

A

Hippocampus uploads recent experienced to the cortex creating new synaptic connections

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3
Q

Brain self-cleaning

A

During sleep, space in the brain expand, allowing more fluids in, brain “flushes out” waste products that build up over time

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4
Q

Metabolic Repair

A

Deep sleep allows the body to repair itself

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5
Q

Restorative Theory of Sleep

A

Sleep allows the body to maintain and repair itself

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6
Q

Adaptive Theory of Sleep

A

Sleep evolved as a way to avoid nocturnal predators

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7
Q

Why do we sleep unconsciously?

A

May be necessary for consolidating memories (Software update reset)

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8
Q

Unihemispheric Sleep

A

Allows birds to continue to fly and be conscious while getting rest

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9
Q

All things with a brain…

A

SLEEP

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10
Q

Circadian Rhythm is set by…

A

amounts of light experiences throughout the day

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11
Q

Circadian Rhythm

A

Daily pattern of sleep - alertness levels vary throughout day,

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12
Q

Sleep stages

A

STAGES 0-4 and REM

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13
Q

Awake and alert

A

Beta waves

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14
Q

Awake but drowsy

A

Alpha Waves

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15
Q

Stage 1 (Light Sleep)

A

Mix of theta waves and alpha waves - only lasts a few minutes (dreams are disconnected thoughts)

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16
Q

Stage 2

A

more theta waves w/ sleep spindles and k-complexes
Muscle tension in the body is being relaxed

17
Q

Stage 3 (Slow Wave Sleep)

A

delta waves - Metabolic activity drops, slow heart rate and breathing

18
Q

Stage 4

A

slowest delta waves, “knocked out” deep sleep has more restorative functions.

19
Q

REM (Rapid Eyemovement)

A

mix of beta, alpha, and theta waves - high brain activity - similar to wakefulness

20
Q

Myoclonic Jerk

A

Sudden motor movement in response to the feeling of falling (when falling asleep)

21
Q

Hypnagogic hallucinations

A

Hallucinations while you are in the process of falling asleep (I have heard music)

22
Q

Hypnopompic hallucinations

A

Hallucinations right before opening your eyes

23
Q

Insomnia

A

May enter early stages are sleep but have difficulty getting extended slow wave sleep - May also have difficult time returning to sleep after REM

24
Q

Sleep apnea

A

During slow wave sleep, breathing stops forcing sleeper to briefly wake up interrupting slow wave sleep

25
Q

Non-REM dreams are mostly…

A

mundane

26
Q

Dreams typically occur during…

A

REM sleep

27
Q

Threat simulation theory proposes that dreams…

A

serve an evolutionary function - dreams are a way to stimulate survival threats

28
Q

An issue with threat simulation theory is that…

A

you’d expect most dreams to be negative, but most dreams are mundane and not negative

29
Q

Freud’s dream interpretations

A

dreams gave insight into the unconscious mind
- interpretations were about primitive urges and sexual
thoughts

30
Q

Cognitive Approach

A

Dreams are modified versions of the same thoughts we have when awake - But no “control” over our thoughts since we are unconscious

31
Q

Problem-focused approach of dream interpretation

A

Dreams express current concerns - not symoblic messages

32
Q

Activation–Synthesis theory

A

dreams are caused by random patterns of brain activity

33
Q

Retro-selective theory

A

¡ Dreams are not continuous experiences
¡ While asleep, many “dreams” occurring simultaneously
¡ While unconscious, brain simultaneously processes many things at once

34
Q

Restorative Theory of Sleep

A

Sleep allows the body to maintain and repair itself (does not explain why sleep has to be unconscious)

Workings of the Mind (15 decks)

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