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Definition
| Our awareness of ourselves and our environment |
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| The biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24 hour cycle. |
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| 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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| The relatively slow brain waves of a relaxed, awake state |
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| periodic, natural loss of consciousness- as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation |
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| false sensory experiences, such as seeing something in the absence of an external visual stimulus |
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| The large, slow brain waves associated with deep sleep |
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| Non-rapid eye movement sleep; encompasses all sleep stages except for REM sleep |
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Definition
| recurring problems in falling or staying asleep |
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| a sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep, often at inopportune times. |
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Definition
| a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings. |
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Definition
| 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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Definition
| 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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Term
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Definition
| according to Freud, the remembered story line of a dream (as distinct from its latent, or hidden, content). |
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Definition
| according to Freud, the underlying meaning of a dream (as distinct from its manifest content). |
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Definition
| the tendency for REM sleep to increase following REM sleep deprivation (created by repeated awakenings during REM sleep). |
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Definition
| a social interaction in which one person (the hypnotist) suggest to another (the subject) that certain perceptions, feelings, thoughts, or behaviors will spontaneously occur. |
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Definition
| 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. |
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Definition
| a split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others. |
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Definition
| a chemical substance that alters perceptions and moods |
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Term
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Definition
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 drug's effects |
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Definition
| the discomfort and distress that follow discontinuing the use of an addictive drug |
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Term
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Definition
| a physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued |
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Definition
| a psychological need to use a drug, such as to relieve negative emotions |
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Definition
| compulsive drug craving and use, despite adverse consequences |
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Definition
| drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions |
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Definition
| drugs that depress the activity of the central nervous system reducing anxiety but impairing memory and judgment |
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Term
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Definition
| opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety. |
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Definition
| drugs (such as caffeine, nicotine, and the more powerful amphetamines, cocaine, and Ecstasy) that excite neural activity and speed up bodily functions |
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Term
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Definition
| drugs that stimulate neural activity, causing speeded-up bodily functions and associated energy and mood changes. |
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Definition
| 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 |
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Term
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Definition
| 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. |
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Definition
| psychedelic ("mind-manifesting") drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input. |
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Definition
| a powerful hallucinogenic drug; also known as acid (lysergic acid diethylamide) |
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Definition
| an altered state of consciousness reported after a close brush with death (such as through cardiac arrest); often similar to drug induced hallucinations |
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| the major active ingredient in marijuana; triggers a variety of effects, including mild hallucinations |
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Definition
| cell clusters in the brains' pineal gland that decrease its production of melatonin |
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Definition
| a sensation of falling or of floating weightlessly |
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Definition
| bursts of rapid rhythmic brainwave activity |
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| activation synthesis theory |
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Definition
| theory the proposes that dreams erupt from neural activity spreading upward from the brainstem |
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Definition
| a drug user's brain adapts its chemistry to offset a drug effect |
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Definition
| another name for barbiturate drugs |
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Definition
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Definition
| hallucinogenic drugs such as LSD and Ecstasy |
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