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Chapter 7
Altered States of Consciousness
| Term | Definition |
|---|---|
| Consciousness | aAstate of awareness, including a person's feelings, sensations, ideas, and perception |
| 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 of feeling very sleepy during the day |
| Nightmares | Unpleasent Dreams |
| NIght Terrors | Sleep disruptions that occur during Stage 4 of sleep, involving screaming, panicking, 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 suggestibilty |
| Posthypnotic Suggestion | A suggestion made during hypnosis that influences the participant's behavior afterward |
| Biofeedback | The process of learning to control bodily states with 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 (Cannabis sativa) that produce an altered stated of consciousness when smoked or ingested |
| Hallucinations | Perceptions that have no direct external cause |
| Hallucinogens | Drugs that often produce hallucinations |
| LSD | A potent psychedelic that produces distortions of perception and thought |