States of Consciousness Flashcards

1
Q

Consciousness

A

our awareness of ourselves and our environment

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2
Q

Biological rhythms

A

periodic physiological fluctuations

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3
Q

Circadian rhythms

A

the biological clocks; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24-hour cycle

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4
Q

REM sleep

A

rapid eye movement sleep, a recurring sleep stage during which vivid dreams commonly occur. Also known as paradoxical sleep, because the muscles are relaxed (except for minor twitches) but other body systems are active

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5
Q

Alpha waves

A

the relatively slow brain waves of a relaxed, awake state

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6
Q

Sleep

A

periodic, natural, reversible loss of consciousness– as distinct from unconsciousness, resulting from a coma, general anesthesia, or hibernation

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7
Q

Hallucinations

A

false sensory experiences, such as seeing something in the absence of an external visual stimulus

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8
Q

Delta waves

A

the large, slow brain waves associated with deep sleep

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9
Q

Insomnia

A

reoccurring problems in falling or staying asleep

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10
Q

Narcolepsy

A

a sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep, often at inopportune times

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11
Q

Sleep Apnea

A

a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings

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12
Q

Night Terror

A

a sleep disorder characterized by high arousal and an appearance of being terrified; unlike nightmares, night terrors occur during Stage 4 sleep, within two or three hours of falling asleep, and are seldom remembered

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13
Q

Dream

A

a sequence of images, emotions, and thoughts passing through a sleeping person’s mind. Dreams are notable for their hallucinatory imagery, discontinuities, and incongruities, and for the dreamer’s delusional acceptance of the content and later difficulties remembering it

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14
Q

Manifest Content

A

according to Freud, the remembered story line of a dream (as distinct from latent, or hidden, content)

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15
Q

Latent Content

A

according to Freud, the underlying meaning of a dream (as distinct from its manifest content). Freud believed that a dream’s latent content functions as a safety valve.

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16
Q

REM rebound

A

the tendency for REM sleep to increase following REM sleep deprivation (created by repeated awakenings during REM sleep)

17
Q

Hypnosis

A

a social interaction in which one person (the hypnotist) suggests to another (the subject) that certain perceptions, feeling, thought, or behaviors will spontaneously occur

18
Q

Posthypnotic suggestion

A

a suggestion, made during a hypnosis session, to be carried out after the subject is no long hypnotized; used by some clinicians to help control undesired symptoms and behaviors

19
Q

Dissociation

A

a split in consciousness, which allows some thoughts add behaviors to occur simultaneously with others

20
Q

Psychoactive drug

A

a chemical substance that alters perceptions and moos

21
Q

Tolerance

A

the diminishing effect of regular use of the same dose of a drug, requiring the user to take larger and larger doses before experiencing the drug’s effect

22
Q

Withdrawal

A

the discomfort and distress that follow discontinuing the use of an addictive drug

23
Q

Physical dependence

A

a physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued

24
Q

Psychological dependence

A

a psychological need to use a drug, such as to relieve negative emotions

25
Q

Addiction

A

compulsive drug craving and use

26
Q

Depressants

A

drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions

27
Q

Barbiturates

A

drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgment

28
Q

Opiates

A

opium and its derivates, such as morphine an heroin; they depress neural activity, temporarily lessening pain and anxiety

29
Q

Stimulants

A

drugs (such as caffeine, nicotine, and the more powerful amphetamines, cocaine, and Esctasy) that excite neural activity and speed up body functions

30
Q

Amphetamines

A

drugs that stimulate neural activity, causing speeded0up body functions and associated energy and mood changes

31
Q

Methamphetamine

A

a powerfully addictive drug that stimulates the central nervous system, with speeded-up body functions and associated energy and mood changes; over time, appears to reduce baseline dopamine levels

32
Q

Ecstasy (MDMA)

A

a synthetic stimulant and mild hallucinogen. Produces euphoria and social intimacy, but with short-term health risks and longer-term harm to serotonin-producing neurons and to mood and cognition

33
Q

Hallucinogens

A

psychedelic (“mind manifesting”) drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input

34
Q

LSD

A

a powerful hallucinogenic drug; also known as acid (lysergic acid diethylamide)

35
Q

THC

A

the major active ingredient in marijuana; triggers a variety of effects, including mild hallucinations

36
Q

Near-death experience

A

an altered state of consciousness reported after a close brush with death (such as through cardiac arrest); often similar to drug-induced hallucinations

37
Q

Dualism

A

the presumption that mind and body are two distinct entities that interact

38
Q

Monism

A

the presumption that mind and body are different aspects of the same thing