| rapid eye movement sleep | REM sleep, that state of deep sleep in which rapid eye movements, alert EEG pattern, and dreaming occur; several central and autonomic functions are distinctive during this state. (05 Mar 2000) |
|---|---|
| non-rapid eye movement | Slow oscillation of the eyes during sleep. (05 Mar 2000) |
| behavior | Manner of behaving, whether good or bad; mode of conducting one's self; conduct; deportment; carriage; used also of inanimate objects; as, the behavior of a ship in a storm; the behavior of the magnetic needle. "A gentleman that is very singular in his behavior." (Steele) To be upon one's good behavior, To be put upon one's good behavior, to be in a state of trial, in which something important depends on propriety of conduct. During good behavior, while (or so long as) one conducts one's self with integrity and fidelity or with propriety. Synonym: Bearing, demeanor, manner. Behavior, Conduct. Behavior is the mode in which we have or bear ourselves in the presence of others or toward them; conduct is the mode of our carrying ourselves forward in the concerns of life. Behavior respects our manner of acting in particular cases; conduct refers to the general tenor of our actions. We may say of soldiers, that their conduct had been praiseworthy during the whole campaign, and their behavior admirable in every instance when they met the enemy. Source: Websters Dictionary (01 Mar 1998) |
| rapid eye movements | Symmetrical quick scanning movement's of the eyes occurring many times during sleep in clusters for 5 to 60 minutes; associated with dreaming. (05 Mar 2000) |
| stereotypic movement disorder | Motor behaviour that is repetive, often seemingly driven, and nonfunctional. This behaviour markedly interfers with normal activities or results in severe bodily self-injury. The behaviour is not due to the direct physiological effects of a substance or a general medical condition. (dsm-IV, 1994) (12 Dec 1998) |
| arrhythmias, rapid | Abnormally rapid heart rhythms, medically termed tachycardia. (12 Dec 1998) |
| rapid canities | Whitening of hair overnight or over a few days; in the latter case, may be seen in alopecia areata, when surviving pigmented hairs are preferentially shed from gray hair. (05 Mar 2000) |
| rapid decompression | Sudden severe expansion of gases due to a reduction in ambient pressure. Synonym: explosive decompression. (05 Mar 2000) |
| rapid demineralization | <radiology> Immobilization atrophy, Sudeck's atrophy (reflex sympathetic dystrophy), rheumatoid or psoriatic (rarely in inflammatory states) see also: vanishing bone (spontaneous osteolysis) syndromes (12 Dec 1998) |
| rapid film changer | A device that moves film for radiographic studies that require rapid serial X-ray exposures, such as angiography. Synonym: rapid film changer, serial film changer. (05 Mar 2000) |
| rapid plasma reagin | <investigation> The rapid plasma reagin test is similar to the VDRL test for diagnosing syphilis. This blood test is designed to detect an antibody substance in the bloodstream when syphilis infection is present. Early syphilis infections may be RPR negative. See: VDRL (17 Dec 1997) |
| rapid plasma reagin test | A group of serologic test's for syphilis in which unheated serum or plasma is reacted with a standard test antigen containing charcoal particles; positive test's yield a flocculation. A modification, called the RPR (circle) card test, is widely used as a screening test. Synonym: RPR test. (05 Mar 2000) |
| Field's rapid stain | <technique> A stain to permit rapid positive diagnosis of malaria in endemic areas by using thick films; it employs methylene blue and azure B in a phosphate buffer, with the preparation counterstained by eosin in a phosphate buffer. (05 Mar 2000) |
| paradoxical sleep | A deep sleep, with a brain wave pattern more like that of waking states than of other states of sleep, which occurs during rapid eye movement sleep. (05 Mar 2000) |
| paroxysmal sleep | <neurology> A disorder of sleep associated with excessive daytime sleepiness, involuntary daytime sleep episodes, disturbed nocturnal sleep and cataplexy. Narcolepsy affects over 100,000 people in the United States and appears to have a genetic basis. Symptoms usually begin in the patients twenties. Treatment often includes the use of amphetamines and-or tricyclic antidepressants. (27 Sep 1997) |