Vocab Essay

263 WordsApr 9, 20132 Pages
Consciousness- a state of awareness, including a person’s feelings, sensations, ideas, and perceptions. REM Sleep- a stage of sleep characterized by rapid eye movements, a high level of brain activity, a deep relaxation of the muscles, and dreaming. Circadian rhythm- the rhythm of activity and inactivity lasting approximately one day. Insomnia- the failure to get enough sleep at night in order to feel rested the next day. Sleep apnea- a sleep disorder in which a person has trouble breathing while asleep. Narcolepsy- a condition characterized by sudden falling asleep or feeling very sleepy during the day. Nightmares- unpleasant dreams. Night terrors- sleep disruptions that occur during Stage IV of sleep, involving screaming, panic, or confusion. Sleepwalking- walking or carrying out behaviors while asleep. Hypnosis- a state of consciousness resulting from a narrowed focus of attention and characterized by heightened suggestibility. Posthypnotic suggestion- a suggestion made during hypnosis that influences the participant’s behavior afterward. Biofeedback- the process of learning to control bodily states with the help of machines monitoring the states to be controlled. Meditation- the focusing of attention to clear one’s mind and produce relaxation. Psychoactive drugs- chemicals that affect the nervous system and result in altered consciousness. Marijuana- the dried leaves and flowers of Indian hemp that produce an altered state of consciousness when smoked or ingested. Hallucinations- perceptions that have no direct external cause. Hallucinogens- drugs that often produce hallucinations. LSD- a potent psychedelic drug that produces distortions of perception and thought. Dreams- mental activity that takes place during sleep. Depressants- having the quality of depressing or lowering the vital

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