Psychology-Chapter7:Altered States of Consciousness
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18 terms
Terms | Definitions |
|---|---|
 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 sleeping |
| narcolepsy | a condition characterized by suddenly 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, and confusion |
| sleepwalking | walking or carrying out behaviors while asleep |
| hypnosis | a state of consciouness 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 drug | chemicals that affect the nervious system and result in altered consciousness |
| marijuana | the dried leaves and flowers of Indian hemp (cannabis sativa) that produce an altered state of consciousness when smoked or ingested |
| hallucinations | perceptions that have no direct external cause |
| hallucinogens | drug that often produce hallucinations |
| LSD | a potent psychedelic drug that produces distortions of perceptions and thought |
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