States of Consciousness
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| 5353426796 | Consciousness | our awareness of ourselves and our environment | 0 | |
| 5353426797 | Circadian rhythm | the biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24-hour cycle | 1 | |
| 5353426798 | Sleep | periodic, natural loss of consciousness-as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation | 2 | |
| 5353426799 | NREM sleep | non-rapid eye movement sleep; encompasses all sleep stages except for REM sleep | 3 | |
| 5353426800 | REM sleep | rapid eye movement sleep; a recurring sleep stage during which vivid dreams commonly occur. Also known as paradoxical sleep, because the muscles are relaxed (except for minor twitches) but other body systems are active | 4 | |
| 5353426801 | Insomnia | recurring problems in falling or staying asleep. | 5 | |
| 5353426802 | Narcolepsy | a sleep disorder characterized by uncontrollable sleep attacks. the sufferer may lapse directly into REM sleep, often at inopportune times | 6 | |
| 5353426803 | Sleep apnea | a sleep disorder characterized by temporary cessations of breathing during sleep. | 7 | |
| 5353426804 | Night terrors | a sleep disorder characterized by high arousal and an appearance of being terrified; unlike nightmares, night terrors occur during Stage 4 sleep, within two or three hours of falling asleep and are seldom remembered | 8 | |
| 5353426805 | Somnambulism | sleep walking | 9 | |
| 5353426806 | Dream | a sequence of images, emotions, and thoughts passing through notable for their hallucinatory imagery, discontinuities, and incongruities, and for the dreamer's delusional acceptance of the content and later difficulties remembering it. | 10 | |
| 5353426807 | Manifest content | according to Freud, the remembered storyline of a dream, (as distinct from its latent, or hidden, content). | 11 | |
| 5353426808 | Latent content | according the Freud, the underlying meaning of a dream (as distinct from its manifest content). | 12 | |
| 5353426809 | REM rebound | the tendency for REM sleep to increase following REM sleep deprivation (created by repeated awakenings during REM sleep). | 13 | |
| 5353426810 | Activation-synthesis hypothesis | Suggests that in the brain engages in a lot of neural activity that is random. Dreams make sense of this activity. | 14 | |
| 5353426811 | Information-processing theory | Dreams may help sift, sort, and fix day's experiences in our memories. | 15 | |
| 5353426812 | Hypnosis | a social interaction in which one person (the hypnotist) suggests to another (the subject) that certain perceptions, feelings, thoughts, or behaviors will spontaneously occur. | 16 | |
| 5353426813 | Posthypnotic suggestion | a suggestion, made during hypnosis session, to be carried out after the subject is no longer hypnotized; used by some clinician to help control undesired symptoms and behaviors | 17 | |
| 5353426814 | State theory | maintains that hypnosis is a special altered state of consciousness. Supporters of the state theory believe that real, significant changes in basic mental processes take place during hypnosis. | 18 | |
| 5353426815 | Dissociation | a split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others. | 19 | |
| 5353426816 | Psychoactive drug | a chemical substance that alters perceptions and moods. | 20 | |
| 5353426817 | Tolerance | the diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger doses before experiencing the drug's effect. | 21 | |
| 5353426818 | Withdrawal | the discomfort and distress that follow discontinuing the use of an addictive drug. | 22 | |
| 5353426819 | Physical dependence | a physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued. | 23 | |
| 5353426820 | Psychological dependence | a psychological need to use a drug, such as to relieve negative emotions. | 24 | |
| 5353426821 | Addition | compulsive drug craving and use, despite adverse consequences. | 25 | |
| 5353426822 | Depressants | drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions. | 26 | |
| 5353426823 | Barbiturates | drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgment. | 27 | |
| 5353426824 | Opiates | opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety. | 28 | |
| 5353426825 | Stimulants | drugs (such as caffeine, nicotine, and the more powerful amphetamines, cocaine, and Ecstasy) that excite neural activity and speed up body functions. | 29 | |
| 5353426826 | Amphetamines | drugs that stimulate neural activity, causing speeded-up body functions and associated energy and mood changes. | 30 | |
| 5353426827 | Ecstasy (MDMA) | a synthetic stimulant and mild hallucinogen. Produces euphoria and social intimacy, but with short-term health risks and longer-term harm to serotonin-producing neurons and to mood and cognition. | 31 | |
| 5353426828 | Hallucinogens | psychedelic (mind-manifesting) drugs, such as SDF, that distort perceptions and evoke sensory images in the absence of sensory input. | 32 | |
| 5353426829 | LSD | a powerful hallucinogenic drug; also known as acid | 33 | |
| 5353426830 | THC | the major active ingredient in marijuana; triggers a variety of effects, including mild hallucinations. | 34 |
