Chapter7 - periodic physiological fluctuations biological...

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Unformatted text preview: periodic physiological fluctuations biological rhythms the biological clock; regular bodily rhythms that occur on a 24hour cycle circadian rhythm temperature and wakefulness circadian rhythm recurring sleep stage during which vivid dreams commonly occur REM sleep known as paradoxical sleep because the muscles are relaxed but other body systems are active REM sleep the relatively slow brain waves of a relaxed, awake state alpha waves periodic, natural, reversible loss of consciousness sleep false sensory experiences, such as seeing something in the absence of an external visual stimulus hallucinations the large, slow brain waves associated with deep sleep delta waves a sleep disorder characterized by uncontrollable sleep attacks narcolepsy the sufferer may lapse directly into REM sleep, often at inopportune times narcolepsy a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings sleep apnea a sleep disorder characterized by high arousal and an appearance of being terrified night terrors occur during Stage 4 sleep, within two or three hours of falling asleep, and are seldom remembered night terrors a sequence of images, emotions, and thoughts passing through a sleeping person's mind dream the remembered story line of a dream manifest content the underlying meaning of a dream latent content the tendency for REM sleep to increase following REM sleep deprivation REM rebound a social interaction in which one person suggests to another that certain perceptions, feelings, thoughts, or behaviors will spon hypnosis a suggestion to be carried out after the subject is no longer hypnotized posthypnotic suggestion used by some clinicians to help control undesired symptoms and behaviors posthypnotic suggestion a chemical substance that alters perceptions and moodpsychoactive drug the diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger doses before ex tolerance the discomfort and distress that follow discontinuing the use of an addictive drug withdrawal a physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued physical dependence a psychological need to use a drug, such as to relieve negative emotions psychological dependence compulsive drug craving and use addiction drugs that reduce neural activity and slow body functionsepressants d alcohol, barbiturates, and opiates depressants drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgment barbiturates opium and its derivatives, such as morphine and heroinopiates they depress neural activity, temporarily lessening pain and anxiety opiates caffeine, nicotine, and the more powerful amphetamines, cocaine, and Ecstasy stimulants drugs that excite neural activity and speed up body functions stimulants drugs that stimulate neural activity, causing speededup body functions and associated energy and mood changes amphetamines a powerfully addictive drug that stimulates the central nervous system, with speededup body functions and associated energy methamphetamine a synthetic stimulant and mild hallucinogen that produces euphoria and social intimacy but with shortterm health risks and lon Ecstasy (MDMA) psychedelic drugs such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input hallucinogens a powerful hallucinogenic drug known as acid LSD the major active ingredient in marijuana that triggers a variety of effects including mild hallucinations THC an altered state of consciousness reported after a close brush with death; often similar to druginduced hallucinations neardeath experience the presumption that mind and body are two distinct entities that interact dualism the presumption that mind and body are different aspects of the same thing monism ...
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This note was uploaded on 04/21/2011 for the course PSYCHOLOGY 413 taught by Professor Moorhouse during the Winter '10 term at Grand Valley State University.

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