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PSY_101_exam_2 - Chapter 7 Consciousness our awareness of...

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Chapter 7 Consciousness- our awareness of ourselves and our environment Biological rhythms- periodic physiological fluctuations Circadian rhythm- the biological clock; regular bodily rhythms (ex. temperature and wakefulness) that occur on a 24-hour cycle REM sleep- 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. Alpha waves- the relatively slow brain waves of a relaxed, awake state Sleep- periodic, natural, reversible loss of consciousness- as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation Hallucinations- false sensory experiences, such as seeing something in the absence of an external visual stimulus Delta waves- the large, slow brain waves associated with deep sleep Insomnia- recurring problems in falling or staying asleep Narcolepsy- a sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep, often in inopportune times. Sleep apnea- a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings. 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 Dream- 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. Manifest content- according to Freud, the remembered story line of a dream (as distinct from its latent, or hidden, content). Latent content- according to Freud, the underlying meaning of a dream (as distinct from its manifest content). Freud believed that a dream’s latent content functions as a safety valve. REM rebound- the tendency for REM sleep to increase following REM sleep deprivation (created by repeated awakenings during REM sleep). Hypnosis- a social interaction in which one person (the hypnotist) suggests to another (the subject) that certain perceptions, feelings, thoughts, or behaviors will spontaneously occur Posthypnotic suggestion- a suggestions, 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 Dissociation- a split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others
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