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psychology

study for midterm Chapter 4

TermDefinition
Stage 1 sleep The state of transition between wakefulness and sleep, characterized by relatively rapid, low-amplitude brain waves.
Stage 2 sleep A sleep deeper than that of stage 1, characterized by a slower, more regular wave pattern, along with momentary interruptions of sleep spindles.
Stage 3 sleep A sleep characterized by slow brain waves, with greater peaks and valleys in the wave pattern than in stage 2.
Stage 4 sleep The deepest stage of sleep, during which we are least responsive to outside stimulation.
Rapid eye movement (REM) sleep Sleep occupying 20% of an adults sleeping time, characterized by increased heart rate, blood pressure, and breathing rate; erections, eye movement, and the experience of dreaming.
Hypnosis A trancelike state of heightened susceptibility to the suggestions of others.
Meditation A learned technique for refocusing attention that brings about an altered state of consciousness.
Psychoactive drugs Drugs that influence a person's emotions, perceptions, and behavior.
addictive drugs Drugs that produce a biological or psychological dependence in the user so that withdrawal from them leads to a craving for the drug that, in some cases, may be nearly irresistible.
stimulants Drugs that have an arousal effect on the central nervous system, causing a rise in heart rate, blood pressure, and muscular tension.
stimulants Drugs that have an arousal effect on the central nervous system, causing a rise in heart rate, blood pressure, and muscular tension.
depressants Drugs that slow down the nervous system.
narcotics Drugs that increase relaxation and relieve pain and anxiety.
narcotics Drugs that increase relaxation and relieve pain and anxiety.
hallucinogen A drug that is capable of producing hallucinations, or changes in the perceptual process.
Created by: shelleyw
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