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| our awareness of ourselves and our environment |
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| the interdisciplinary stucy of the brain activity linked with cognition (including perception, thinking, meory, and language). |
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| the principle that information is often simultaneously processed on separate conscious and unconscious tracks |
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| a condition in which a person can respond to a visual stimulus without consciously experiencing it. |
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| the focusing of conscious awareness on a particular stimulus. |
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| failing to notice changes in the 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 relazed (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 losss of consciousness- as distinct from unconsciousness resulting from a coma, gernal 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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| a pair of cell clusters in the hypothalamus that respons light-sensitive retinal proteins; causes pineal gland to increase or decrease produciton of melatonin, thus modifying our feelings of sleepiness. |
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| recurring problems in falling or staying alseep |
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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 NREM-3 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 halluscinatory imagery, dicontinuities, and incongruities, and for the dreamer's delusional acceptance of the content and later difficulties remembering it. |
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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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| the tendency for REM sleep to increase following REM sleep deprivation (created by repeated awakenings during REM sleep). |
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| a social interaction in cwhich one person (the hypnotist) suggests to another (the subject) that certain perceptions, feelings, thoughts, or behaviours 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 consciousness, which allows some thoughts and behaviors to occur simultaneously with others. |
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| continued substance craving and use despite significant life disruption and/or physical risk |
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| a chemical substance that alters perceptions and moods. |
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| with repeated use. achieving the desired effect requires larger doses. |
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| compulsive craving of drugs or certain behaviors (such as gambling) despite known adverse consequences. |
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| the discomfort and distress that follow dicontinuing the use of an addictive drug or behavior. |
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| drugs (such as alcolol, barbiturates, and opiates) that reduce neural activity and slow body functions. |
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| (popularly known as alcoholism). Alcohol use marked by tolerance, withdrawal, and a drive to continue problematic use. |
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Definition
| drugs that depress central nervous sustem activity reducing anxiety but impairing memory and judgment. |
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| opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarity lessening pain and anxiety. |
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Definition
| drugs (such as caffein, nicotine, and the more powerful amphetamine) that excite neural activity and speed up body functions. |
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| a stimulating and highly addictive psychoactive drug in tobacco. |
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| 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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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 cognition. |
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| psychedelic ("mind-manifesting") drugs, such as LSD, that distrot perceptions and evoke sensory images in the absence of sensory input. |
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| a powerful hallucinogenic drug; also known as acid |
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| 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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Definition
| the major active ingredient in marijuana; triggers a variety of effects, including mild hallucinations. |
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