Terms : Hide Images
| 1122037826 | Consciousness | Our awareness of ourselves and our environments. | 1 | |
| 1122037827 | Circadian Rhythm | The biological clock; regular body rhythms (for example, of temperature and wakefulness) that occur on a 24 hr. cycle. | 2 | |
| 1122037828 | 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. | 3 | |
| 1122037829 | Alpha Waves | The relatively slow brain waves of a relaxed, awake state. | 4 | |
| 1122037830 | Sleep | Periodic, natural loss of consciousness - as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation. | 5 | |
| 1122037831 | Hallucinations | False sensory experiences such as seeing something in the absence of an external visual stimulus. | 6 | |
| 1122037832 | Delta Waves | The large, slow brain waves associated with deep sleep. | 7 | |
| 1122037833 | NREM Sleep | Non-rapid eye movement sleep; encompasses all sleep stages except for REM sleep. | 8 | |
| 1122037834 | Insomnia | Recurring problems in falling or staying asleep. | 9 | |
| 1122037835 | Narcolepsy | A sleep disorder characterized by uncontrolled sleep attacks. The sufferer may lapse directly into REM sleep, of at inopportune times. | 10 | |
| 1122037836 | Sleep Apnea | A sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings. | 11 | |
| 1122037837 | Night Terrors | A sleep disorder characterized by high arousal and 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. | 12 | |
| 1122037838 | Dreams | A sequence of images, emotions, and thoughts passing through a sleeping persons mind. Dreams are notable for their hallucinatory imagery, discontinuities, and incongruities, and for the dreamers delusional acceptance of the content and later difficulties remembering it. | 13 | |
| 1122037839 | Manifest Content | According to Freud, the remembered story line of a dream (as distinct from its latent, or hidden context). | 14 | |
| 1122037840 | Lantent Content | According to Freud, the underlying meaning of a dream (as distinct from its manifest content). | 15 | |
| 1122037841 | Activation-Synthesis Theory | Neural activity is random and dream's are the brains attempt to make sense of it. | 16 | |
| 1122037842 | REM Rebound | The tendency for REM sleep to increase following REM sleep deprivation (created by repeated awakenings during REM sleep). | 17 | |
| 1122037843 | 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. | 18 | |
| 1122037844 | Posthypnotic Suggestions | A suggestion, made during a hypnosis session o be carried out after the subject is no longer hypnotized; used by some eliminations to help control undesired symptoms and behaviors. | 19 | |
| 1122037845 | Dissociation | A split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others. | 20 | |
| 1122037846 | Psychoactive Drugs | A chemical substance that alters perceptions and moods. | 21 | |
| 1122037847 | Tolerance | The diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and longer doses before experiencing the drugs effect. | 22 | |
| 1122037848 | Withdrawal | The discomfort and distress that follow discontinuing the use of an addictive drug. | 23 | |
| 1122037849 | Physical Dependence | A physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued. | 24 | |
| 1122037850 | Psychological Dependence | A psychological need to use a drug, such as to relieve negative emotions. | 25 | |
| 1122037851 | Addiction | Compulsive drug craving and use, despite adverse consequences. | 26 | |
| 1122037852 | Depressants | Drugs (such as alcohol, barbiturates, and opiates) that reduce neural activity and slow body functions. | 27 | |
| 1122037853 | Barbiturates | Drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgement. | 28 | |
| 1122037854 | Opiates | Opium and its derivatives, such as morphine and heroin; they depress neural activity, temporarily lessening pain and anxiety. | 29 | |
| 1122037855 | Stimulants | Drugs (such as caffeine, nicotine, and the more powerful amphetamines, cocaine and ecstasy) that excite neural activity and speed up body functions. | 30 | |
| 1122037856 | Amphetamines | Drugs that stimulate neural activity, causing speeded up body functions and associated energy and mood changes. | 31 | |
| 1122037857 | Methamphetamine | A powerfully addictive drug that stimulates the central nervous system with speed up body functions and associated mood changes; over time, appears to reduce baseline dopamine levels. | 32 | |
| 1122037858 | Insula | Area that lights up when people crave drugs. | 33 | |
| 1122037859 | Ecstacy (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. | 34 | |
| 1122037860 | Hallucinogens | Psychedelic ("mind manifesting") drugs, such as LSD, that distort perceptions and evoke sensory images in the absence of sensory input. | 35 | |
| 1122037861 | LSD | A powerful hallucinogen drug; also known as acid (lysergic acid diethyl amide). | 36 | |
| 1122037862 | Near-Death Experience | An altered state of consciousness reported after a close brush with death (such as through cardiac arrest); often similar to drug induced hallucinations. | 37 | |
| 1122037863 | THC | The major active ingredient in marijuana; triggers a variety of effects including mild hallucinations. | 38 |
