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Consciousness
Vocabulary for Theme 3a
| 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 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 or dreams that cause stress. |
| Night Terrors | Sleep disruptions that occur during stage IV of sleep, involving screaming, panic, and or confusion. |
| Sleepwalking | Walking or carrying out behaviors [usually linked to being awake] 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 afterwards. |
| 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 Cannabis sativa that produce an altered state of consciousness when ingested into the body. |
| 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. |