Chapter 5: Consciousness Flashcards

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1
Q

Consciousness

A

A person’s subjective experience of the world and the mind. eg/Alertness, self-awareness etc..

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2
Q

minimal consciousness

A

low-level sensory awareness and responsiveness that occurs when the mind inputs sensations and may output behaviour

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3
Q

full consciousness

A

you know and are able to report your mental state

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4
Q

cognitive unconscious

A

the processing of perception, memory, learning, thought, and language without being aware of it

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5
Q

circadian rhythm

A

the physical, mental, and behavioral changes an organism experiences over a 24-hour cycle, Light and dark have the biggest influence on circadian rhythms

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6
Q

suprachiasmatic nucleus

A

affects alertness and sleep by causing the pineal gland to decrease melatonin production in the morning and increase production in the evening

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7
Q

sleep stages

A

patterns of brain waves and muscle activity that are associated with different types of consciousness and sleep

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8
Q

the sleep cycle

A

patterns of shifting through all the sleep stages over the course of the night

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9
Q

beta and alpha waves

A

awake and alertness generates beta waves and drowsy and relaxed generates alpha waves

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10
Q

stage 1: falling asleep

A

breathing slows down, may encounter hypnagogic hallucinations, brain waves become slower and irregular (4-7Hz)

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11
Q

stage 2: sleep

A

beginning of sleep, sleep spindles and k complexes occur here

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12
Q

stage 3/4: deep sleep

A

deeper sleep state where brain activity slows in delta waves (3 Hz)

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13
Q

stage 5: REM sleep

A

deepest stage of sleep, the brain becomes more active (BW 25Hz) and eyes start to moving rapidly, REM, dreams take place durning REM sleep

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14
Q

What happens durning REM sleep

A
  • heart rate rises and breathing becomes rapid
  • '’sleep paralysis’’ occurs when brainstem blocks motor cortex’s messages/muscles don’t move
  • genitals are aroused stay that way after REM
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15
Q

paradoxical sleep (REM)

A

when the brain is active but the body is immobile

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16
Q

insomnia

A

persistent difficulty in falling or staying asleep causes/caused by depression, anxiety or stress

17
Q

narcolepsy

A

sudden sleep attacks durning waking activity may collapse into REM sleep and last from 30secs to 30mins

18
Q

sleep apnea (‘‘with no breath’’)

A

repeated awakening after breathing stops; time in bed is not restorative sleep caused by age/excess weight

19
Q

night terrors

A

the sudden arousal from deep sleep with intense fear accompanied by physiological reactions (eg, rapid heart rate, perspiration)

20
Q

sleepwalk/sleeptalk

A

a deep sleep disorder which is usually harmless and not recalled the next day occur in deep sleep and affect kids

21
Q

Freud’s wish fulfillment

A

dreams provide a psychic safety valve to get rid of bad feelings

22
Q

Activation-synthesis theory

A

dreams are the brain’s way of making sense of random electrical signals durning REM sleep. Dreams don’t have special meanings

23
Q

psychoactive drug

A

chemicals that, when they get into the body, change what you think and feel and/or how you act. agonists/antagonists

24
Q

physical dependence

A

the body has been altered in ways that create cravings for the drug

25
Q

psychological dependence

A

a person feels a strong desire to use the drug even in the absence of physical dependence

26
Q

withdrawal

A

negative physiological and psychological consequences that a person has when they suddenly stop or cut back the use of an addictive substance

27
Q

addiction

A

compulsive craving for the chemical substance despite its adverse consequences

28
Q

depressants

A

drugs that reduce neural activity in the CNS and slow body functions, eg alcohol, opiates

29
Q

expectancy theory

A

alcohol consumption may influence behaviour through individuals’ expectations about alcohol’s emotional, physiological, and behavioural effects

30
Q

opiates

A

chemicals like morphine and heroin that made from the opium poppy, reduces anxiety and pain

31
Q

stumulants

A

drugs that excite neural activity and speed up body functions, eg caffeine, nicotine, cocaine

32
Q

cocaine, methamphetamine, ecstasy/MDMA

A

produce euphoria and energy followed by irritability, insomnia, seizures, depression

33
Q

hallucinogens

A

psychedelic drugs like LSD and mescaline that change how you see things and make you feel things even when you’re not actually feeling them

34
Q

lysergic acid diethyl-amide (LSD)

A

powerful hallucinogenic drug that is also knows as acid

35
Q

THC

A

major active ingredient in marijuana that triggers a variety of effects like mild hallucinations

36
Q

hypnosis

A

a social interaction in which one person (hypnotist) suggests another (the subject) that changes in their subjective experiences will occurs (perceptions, feelings, thoughts)

37
Q

hypnotic induction

A

the process by which a hypnotist leads someone into the stage of heightened suggestibility

38
Q

hypnotic analgesia

A

reduction of pain due to hypnotic induction and suggestion