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19 Cards in this Set
- Front
- Back
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our awareness of ourselves and our environment.
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consciousness
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the principle that information is often simultaneously processed on separate conscious and unconscious tracks.
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dual processing
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the focusing of conscious awareness on a particular stimulus.
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selective attention
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failing to see visible objects when our attention is directed elsewhere.
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inattentional blindness
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failing to notice changes in the environment.
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change blindness
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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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circadian rhythm
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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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REM sleep
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the relatively slow brain waves of a relaxed, awake state.
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alpha waves
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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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sleep
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false sensory experiences, such as seeing something in the absence of an external visual stimulus.
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hallucinations
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the large, slow brain waves associated with deep sleep.
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delta waves
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recurring problems in falling or staying asleep.
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insomnia
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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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narcolepsy
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a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings.
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sleep apnea
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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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night terrors
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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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dream
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according to Freud, the remembered story line of a dream (as distinct from its latent, or hidden, content).
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manifest content
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according to Freud, the underlying meaning of a dream (as distinct from its manifest content).
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latent 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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REM rebound
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