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Chapter 7
| Term | Definition |
|---|---|
| Consciousness | A state of awareness, including a person's feelings, sensations, ideas, and perceptions |
| REM Sleep | A stage of sleep characterized by rapid eye movement, a high level of brain activity, a deep relaxation of the muscle, 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 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, or confusion |
| Sleepwalking | Walking or carrying out behaviors while asleep |
| Hyponsis | 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 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 (Cannabis Sativa) 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 |