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PSY 1200 > Module 8 > Flashcards

Module 8 Flashcards

1
Q

EEG (electroencephalograph)

A

type of physiograph that focuses on brain activity during sleep via electrodes that produce electrical signals

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2
Q

physiograph

A

amplifies brain signals and records them for later analysis; includes brain activity, heart rate, breathing rate, muscle tension changes during sleep

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3
Q

alpha waves

A

slow, smooth, regular waves; occur when person is awake and relaxed

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4
Q

beta waves

A

fast and irregular waves produced when one is alert and awake

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5
Q

NREM-1

A

transition from wakefulness into sleep; hallucinations including ones incorporated with memories, falling (jerking) and floating; easily awaken; neuron firings/waves are irregular

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6
Q

NREM-2

A

brief bursts of rapid brain activity (spindles)o; truly asleep

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7
Q

NREM-3

A

deep sleep; delta waves; short

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8
Q

delta waves

A

low frequency, high amplitude waves; NREM-3

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9
Q

REM (paradoxical sleep; rapid eye movement)

A

`occurs after passing through NREM-2 second time; fast and irregular waves; muscle relaxation besides eyes; 80% dreams; genitals aroused; an hour after first falling asleep (second half); lasts 10 minutes

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10
Q

yawning

A

response to reduced brain metabolism; stretches beck muscles and increases heart rate to increase alertness

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11
Q

sleep cycle

A

every 90 min; NREM-1, NREM-2, NREM-3, NREM-2, REM; NREM-3 decreases as sleep goes on; NREM-2 and REM increase as sleep goes on

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12
Q

sleep with age

A

becomes less fragile and awakenings become more common

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13
Q

suprachiasmatic nucleus (SCN)

A

cell clusters in hypothalamus that receive triggers from bright-light-sensitive retinal proteins

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14
Q

desynchronization

A

chronic disruption of circadian cycle

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15
Q

light on sleep

A

causes pineal gland to decrease production of melatonin in morning and increase at night

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16
Q

circadian rhythm

A

biological clock; regular bodily rhytms that occur on a 24-hour cycle including wakefulness and body temp

17
Q

body temperature circadian rhythm

A

increases in morning, decreases at night; peak during afternoon, causing thinking and memory to improve at this time

18
Q

reasons for sleep

A

instinctual protection, recuperation, restoration, rebuilding, and storing of memory, feeds creative thinking, growth, physical ability heighten

19
Q

effects of sleep loss

A

decrease in mood, energy, performance (esp academic), increase in social conflicts; causes onset of depression; weight gain; surpresses immune cells (more susceptible to diseases); cyberloafing

20
Q

tips for better sleep

A

exercise, avoiding caffiene in afternoon; avoid food and drink near bedtime (except milk); have a regular schedule; relax; dim lights prior to sleeping

21
Q

insomnia

A

ongoing difficulty falling/staying asleep; reliance on pills and alcohol

22
Q

narcolepsy

A

sudden attacks of overwhelming sleepiness; risk of falling asleep at dangerous moment

23
Q

sleep apnea

A

stopping breathing repeatedly during sleep; can cause fatigue and weight gain

24
Q

sleepwalking (somnombulism)/sleeptalking (somniloquy)

A

doing normal awake activities while sleeping

25
Q

night terrors

A

appearing scared, talking nonsense, sitting up, walking around during sleep; different from nightmares

26
Q

dream content

A

80% negative; REM dreams are vivid and bizarre; traces of previous day’s experiences; real life sensory stimuli may be incorporated; sexual

27
Q

common dreams

A

failing; being attacked, pursued, or rejected; misfortune

28
Q

wish-fulfillment theory

A

Freud; dreams are key to inner conflicts and desires; some say too deep; lacks scientific support

29
Q

manifest content

A

apparent and remembered plot of dream

30
Q

latent content

A

unconscious drives and wishes represented by manifest content

31
Q

info-processing perspective

A

dreams are purposed to help sift, sort, and fiz day’s experiences into memory; doesn’t explain why we dream about past events or things we haven’t experienced

32
Q

physiological theory

A

dreams develop and preseerve neural processing; periodic neural stimulation; doesn’t explain why we have meaningful dreams

33
Q

activation-synthesis theory

A

dreams make sense of neural static; synthesize random neural activity

34
Q

cogntitive development theory

A

dreams reflect cognitive development and brain maturation; dreams stimulate reality (knowledge and understanding); not an adaptive function of dreams

35
Q

REM rebound

A

tendency for REM sleep to increase following REM sleep deprivation as REM is needed (biological and genetic; survived natural selection)

PSY 1200 (37 decks)

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