Terms : Hide Images
| 5547463065 | consciousness | our awareness of ourselves and our environment |  | 0 |
| 5547463066 | circadian rhythm | the biological clock; regular bodily rhythms that occur on a 24-hour cycle |  | 1 |
| 5547463067 | REM sleep | rapid eye moment sleep; a recurring sleep stage during which vivid dreams commonly occur. Also known as paradoxical sleep |  | 2 |
| 5547468926 | Paradoxical Sleep | the muscles are relaxed (except for minor twitches) but other body systems are active | 3 | |
| 5547463068 | alpha waves | the relatively slow brain waves of a relaxed, awake state |  | 4 |
| 5547463069 | sleep | periodic, natural loss of consciousness - as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation |  | 5 |
| 5547463070 | hallucinations | false sensory experiences, such as seeing something in the absence of an external visual stimulus |  | 6 |
| 5547463071 | delta waves | the large, slow brain waves associated with deep sleep |  | 7 |
| 5547463072 | NREM sleep | non-rapid eye movement sleep; encompasses all sleep stages except for REM sleep |  | 8 |
| 5547463073 | narcolepsy | a sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep, often at inopportune times |  | 9 |
| 5547463074 | sleep apnea | a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings |  | 10 |
| 5547463075 | night terrors | a sleep disorder characterized by a 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 |  | 11 |
| 5547463076 | dream | a sequence of images, emotions, and thoughts passing through a sleeping person's mind. Dreams are notable for their hallucinatory imagery, discontinuities, and incongruities, and for the dreamer's delusional acceptance of the content and later difficulties remembering it |  | 12 |
| 5547463077 | manifest content | according to Freud, the remembered story line of a dream (as distinct from its latent, or hidden, content) |  | 13 |
| 5547463078 | latent content | according to Freud, the underlying meaning of a dream (as distinct from its manifest content) |  | 14 |
| 5547463079 | REM rebound | the tendency for REM sleep to increase following REM sleep deprivation (created by repeated awakenings during REM sleep) |  | 15 |
| 5547463080 | hypnosis | a social interaction in which one person suggests to another that certain perceptions, feelings thoughts or behaviors will spontaneously occur |  | 16 |
| 5547463081 | posthypnotic suggestions | a suggestion, made during a hypnosis session, to be carried out after the subject is no longer hypnotized; used by some clinicians to help control undesired symptoms and behaviors |  | 17 |
| 5547463082 | dissociation | a split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others |  | 18 |
| 5547463083 | psychoactive drug | a chemical substance that alters perceptions and moods |  | 19 |
| 5547463084 | 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 |  | 20 |
| 5547463085 | withdrawal | the discomfort and distress that follow discontinuing the use of an addictive drug |  | 21 |
| 5547463086 | physical dependence | a physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued |  | 22 |
| 5547463087 | psychological dependence | a psychological need to use a drug, such as to relieve negative emotions |  | 23 |
| 5547463088 | addiction | compulsive drug craving and use, despite adverse consequences |  | 24 |
| 5547463089 | depressants | drugs (such as alcohol, barbiturates, and opiates) that reduce activity and slow body functions |  | 25 |
| 5547463090 | barbiturates | drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgment |  | 26 |
| 5547463091 | opiates | opium and its derivatives, (such as morphine and heroin); they depress neural activity, temporarily lessening pain and anxiety |  | 27 |
| 5547463092 | stimulants | drugs (such as caffeine, nicotine, and more powerful amphetamines, cocaine, and ecstasy) that excite neural activity and speed up the body functions |  | 28 |
| 5547463093 | amphetamines | drugs that stimulate neural activity, causing sped-up body functions and associated energy and mood changes |  | 29 |
| 5547463094 | methamphetamine | a powerfully addictive drug that stimulates the central nervous system, with sped-up body functions and associated energy and mood changes; over time, appears to reduce baseline dopamine levels |  | 30 |
| 5547463095 | near-death experience | an altered state of consciousness reported after a close brush with death (such as cardiac arrest); often similar to drug-induced hallucinations |  | 31 |
| 5547463096 | THC | the major active ingredient in marijuana; triggers a variety of effects, including mild hallucinations |  | 32 |
| 5547463097 | homeostasis | a state of psychological equilibrium obtained when tension or a drive has been reduced or eliminated |  | 33 |
| 5547463098 | insomnia | recurring problems in falling or staying asleep |  | 34 |
| 5547463099 | activation-synthesis theory | theory that dreams reflect inputs from brain activation originating in the pons, which the forebrain then attempts to weave into a story |  | 35 |
| 5547463100 | biofeedback | a training program in which a person is given information about physiological processes (heart rate or blood pressure) that is not normally available with the goal of gaining conscious control of them |  | 36 |
| 5547463101 | meditation | the act of deep thinking or reflection |  | 37 |
| 5547463102 | 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 |  | 38 |
| 5547463103 | hallucinogens | psychedlic drugs, such as LSD, that distort perception and evoke sensory images in the absence of sensory input |  | 39 |
| 5547463104 | LSD | a powerful hallucigenic drug; also known as acid |  | 40 |
| 5547463107 | Sigmund Freud | considered dreams the key to understanding our inner conflict |  | 41 |
