Chapter 7 - States of Consciousness Flashcards

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1
Q

biological rhythms

A

periodic physiological fluctuations

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2
Q

circadian rhythm

A

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

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3
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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4
Q

alpha waves

A

The relatively slow brain waves of a relaxed, Awake state

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5
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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6
Q

hallucinations

A

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

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7
Q

delta waves

A

The large, slow brain waves associated with deep sleep

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8
Q

insomnia

A

recurring problems in falling or staying sleep

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9
Q

narcolepsy

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

The sleep disorder characterized by temporary cessation of breathing during sleep and repeated momentary awakenings

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11
Q

night terrors

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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12
Q

dream

A

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

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13
Q

manifest content

A

according to Freud, the remembered storyline of the dream (as distinct from its latent, or hidden, content)

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14
Q

latent content

A

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

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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)

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16
Q

hypnosis

A

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

17
Q

posthypnotic suggestion

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

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

19
Q

psychoactive drug

A

Chemical substance that alters perceptions and mood

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 before experiencing the drugs effect

21
Q

withdrawal

A

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

22
Q

physical dependence

A

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

23
Q

psychological dependence

A

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

24
Q

addiction

A

compulsive drug craving and use

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 judgment

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; overtime, appears to reduce baseline dopamine levels

31
Q

Ecstasy (mdma)

A

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

32
Q

hallucinogens

A

psychedelic (“mind-manifesting”) 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 (lysergic acid diethylamide)

34
Q

THC

A

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

35
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

36
Q

consciousness

A

our awareness of ourselves and our environment