Chapter 5- States Of Consciousness Flashcards

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0
Q

Circadian rhythm

A

The biological clock, regular bodily rhythms that occur on a 24 hour cycle

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1
Q

Consciousness

A

Our awareness of ourselves and our environment

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2
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 but other body systems are active

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3
Q

Alpha waves

A

The relatively slow brain waves of a relaxed, awake state

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4
Q

Sleep

A

Periodic, natural loss of consciousness-as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation

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5
Q

Hallucinations

A

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

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6
Q

Delta waves

A

The large, slow brain waves associated with deep sleep

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7
Q

NREM sleep

A

Non-rapid eye movement sleep; encompasses all sleep stages except for REM sleep.

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8
Q

Insomnia

A

Recurring problems in falling or staying asleep

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9
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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10
Q

Sleep apnea

A

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

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11
Q

Night terrors

A

A sleep disorder characterized by high arousal and an appear car 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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12
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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13
Q

Manifest content

A

According to Freud, the remembering story line of a dream (as distinct from its latent, or hidden, content)

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14
Q

Latent content

A

According to Freud, the underlying meaning of a dream (as distinct from its manifest content)

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15
Q

REM rebound

A

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

16
Q

Hypnosis

A

A social interaction in which one person (the hypnotist) suggest to another (the subject) that certain perceptions, thoughts, feelings, or emotions will spontaneously occur.

17
Q

Posthypnotic suggestion

A

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

18
Q

Dissociation

A

A split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others

19
Q

Psychoactive drug

A

A chemical substance that alters perceptions and moods

20
Q

Tolerance

A

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

21
Q

Withdrawal

A

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

22
Q

Physical dependence

A

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

23
Q

Psychological dependence

A

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

24
Q

Addiction

A

Compulsive drug craving and use, despite adverse conditions

25
Q

Depressants

A

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

26
Q

Barbiturates

A

Drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgement

27
Q

Opiates

A

Opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety

28
Q

Stimulants

A

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

29
Q

Amphetamines

A

Drugs that stimulate neural activity, causing speeded-up body functions and associated energy and mood changes

30
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

31
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

32
Q

Hallucinogens

A

Psychedelic drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input

33
Q

LSD

A

A powerful hallucinogenic drug; also known as acid

34
Q

Near-death experience

A

An altered state of consciousness reported after a close brush with death; often similar to drug-induced hallucinogens

35
Q

THC

A

The major active ingredient in marijuana; triggers a variety of effects, including mild hallucinogens