Chapter 4: Concsiousness: Wide Awake, in a Daze, or Dreaming? Flashcards

Sleep, Dreaming, and Circadian Rhythm Hypnosis: Real or Imagined? Psychoactive Drugs

1
Q

consciousness

A

feelings, thoughts and aroused states of which we are aware

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2
Q

microsleep

A

brief episode of sleep that occurs in the midst of wakeful activity

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3
Q

circadian rhythm

A

changes in bodily processes that occur repeatedly on approximately a 24- to 25- hour cycle

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4
Q

suprachiasmatic nucleus SCN

A

a group of brain cells located in the HYPOTHALAMUS

signals other brain areas when to be aroused/when to shut down (On/Off)

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5
Q

melatonin

A

hormone in the body that facilitates sleep

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6
Q

non-REM sleep

A
relaxing state of sleep in which the person's eyes do NOT move
4 Stages _ 
Stage 1 - light sleep & theta waves; 
          1-7 mins.
         "falling/floating" sensation

Stage II = sleep spindles(slower thetas)
lasts 20 mins
hard to wake you up here

St 3 & 4 = slow wave sleep
delta waves - large, slow

ST 4 = DEEP sleep
when you have consistent deltas
heart, breathing, temp, blood flow to brain all slowed down
growth hormone is secreted
difficult to awakend - disoriented/confused
30 -40 mins then…

cycle back to nonREM Stage II then to

REM! (dreaming!

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7
Q

REM sleep

A

active state of sleep in which the person’s eyes move

dreaming happens here
brain waves look like “awake” person!

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8
Q

REM behavior disorder

A

condition in which normal muscle paralysis does NOT occur, leading to violent movements during REM sleep (thrashing, kicking, etc.) mostly in old men

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9
Q

REM rebound

A

loss of REM sleep is recouped by spending more time in REM on subsequent nights!

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10
Q

manifest content

A

Freud

what the dreamer recalls on awakening

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11
Q

latent content

A

Freud

the symbolic meaning of a dream

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12
Q

threat simulation theory

A

suggests that dreaming is an ancient biological defense mechanism that allows us to repeatedly simulate potentially threatening situations so that we can rehearse our response to these events.

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13
Q

activation-synthesis theory

A

suggest that dreams do NOT have symbolic meaning, but hey are the by-product of the brain’s random firing of neural impulses during REM sleep

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14
Q

sleep disorder

A

a disturbance in the normal pattern of sleeping
95% of Americans experience at some point
25-40% of children

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15
Q

Insomnia

A

a sleep disorder in which a person cannot get to sleep and/or stay asleep

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16
Q

narcolepsy

A

a rare sleep disorder in which a person falls asleep during alert activities during the day

17
Q

sleep apnea

A

Dad has this
a sleep disorder
the person stops breaing during sleep

18
Q

sleepwalking

A

somnambulism
sleep disorder in which a person is mobile and may perform actions during stage IV sleep
I have this!

19
Q

night terrors

A

very frightening non -REM sleep episodes

You had this - so did Dan - just screamed out in the middle of the night and were terrified

20
Q

nightmare

A

a brief scary REM dream that is often remembered

21
Q

enuresis

A

a condition in which a person over the age of 5 shows an inability to control urination during sleep…

22
Q

hypnosis

A

a state of heightened suggestibility

23
Q

dissociation theory

A

Hilgard’s proposal that hypnosis involves 2 simultaneous states: a hypnotic state and a hidden observer

24
Q

response set theory of hypnosis

A

asserts that hypnosis is NOT an altered state of consciousness, but a cognitive set to respond appropriately to suggestions

25
Q

psychoactive drugs

A

substances that influence the brain and thereby the individual’s behavior

26
Q

tolerance

A

a condition in which after repeated use, more of a drug is needed to achieve the same effect

27
Q

substance dependence

A

a condition in which a person needs a drug in order to maintain normal functioning

28
Q

withdrawal symptoms

A

physical or behavioral effects that occur after a person stops using a drug

29
Q

substance abuse

A

loss of control over one’s drug use

30
Q

psychoactive drugs

A

4 groups of substances most often leadning to substance dependence are

  1. depressants
  2. opiates
  3. stimulants
  4. hallucinogens
31
Q

Depressants

A

Drugs that inhibit or slow down normal neural functioning

Route = oral,topical, injected

Effects: relax, lower inhibitions, impaired reflexes, motor coordination, & memory

Includes; alcohol,
barbituates (barbs)
benzodiazepines (roofies, tranks)

32
Q

Opiates

A

Route: oral, injected, smoked, sniffed
AKA Narcotics
pain killing drugs taht depress some brain areas and excite others

Effects: euphoria, pain control, loss of appetite

Includes:

Codeine
Heroin (horse, smack)
Methadone
Morphine
Opium
33
Q

stimulants

A

Drugs taht interfere with brain functioning by speeding up normal brain actvity

Route: oral, smoked, sniffed, transdermal

Effects: alertness; increased energy, loss of appetite, insomnia, anxiety, paranoia

Includes:
Cafffeine
Nicotine
Cocaine (coke, crack, blow)
amphetamine (black beauties, crosses)
methamphetamine (crank, crystal, ice)
MDMA (adam, Ecstacy, XTC)
34
Q

Hallucinogens

A

Drugs that simultaneously excite AND inhibit normal neural activity, thereby causing distortions in perception

Route: oral, smoked, injected

Effects: relaxation, euphoria, distortion, unpredictable moods

Includes;
Marijuana (grass, reefer)
Phencyclidine (PCP, angel dust, hot)
LSD (acid, microdot)

35
Q

fetal alcohol syndrome FAS

A

a birth condition resulting from the mother’s chronic use of alcohol during pregnancy;

characterized by facial and limb deformities and intellectual impairment

36
Q

THC tetrahydrocannabinol

A

the active ingredient in marijuana that affects learning, short-term memory, coordination, emotion, and appetite.