Definition Seasonal affective disorder, often abbreviated as SAD, is a type of mood disorder that follows an annual pattern consistent with the seasons. The most common course for SAD includes an onset of depressive symptoms late in the fall, continuation of symptoms throughout winter, and remission of symptoms in the spring. Description According to the [...]
Definition Schizotypal personality disorder is characterized by an ongoing pattern in which the affected person distances him- or herself from social and interpersonal relationships. Affected people typically have an acute discomfort when put in circumstances where they must relate to others. These individuals are also prone to cognitive and perceptual distortions and a display a [...]
Definition Schizophreniform disorder (SFD) is a time-limited illness wherein the sufferer has experienced at least two of the major symptoms of psychosis for longer than one month but fewer than six months. Hallucinations, delusions, and strange bodily movements or lack of movements (catatonic behavior) are all symptoms that may be observed. Additionally, minimal or peculiar [...]
Definition Schizoid personality disorder is characterized by a persistent withdrawal from social relationships and lack of emotional responsiveness in most situations. It is sometimes referred to as a “pleasure deficiency” because of the seeming inability of the person affected to experience joyful or pleasurable responses to life situations. Description A person with schizoid personality disorder [...]
Definition One of the most challenging mental disorders to identify accurately and treat appropriately is schizoaffective disorder. This condition involves both psychotic symptoms and conspicuous, long-enduring, severe symptoms of mood disorder. The cluster of symptoms experienced by persons with schizoaffective disorder can resemble—at various times in its course—bipolar disorder, major depressive episode with psychotic features, [...]
Definition SAMe (or S-adenosyl-L-methionine) is a naturally occurring chemical that is found throughout the entire body. It is involved in many chemical reactions that are necessary for life. SAMe is available as a natural dietary supplement that can be found at some pharmacies or health food stores, and can be purchased without a prescription. Purpose [...]
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Definition Rumination disorder may be diagnosed when a person deliberately brings food back up into the mouth and either rechews and reswallows it or spits it out. Description Rumination disorder is sometimes called merycism. It is a disorder most commonly found in infants, and associated with mental retardation. During rumination, previously eaten food is intentionally [...]
Definition Rosemary is an herb derived from an evergreen shrub, Rosmarinus officinalis, related to the mint or Lamiaceae family of plants. Rosemary is a native of the Mediterranean regions of Europe and the Near East; Tunisia is a major modern-day source of the plant. Rosemary can grow as tall as 5 ft, producing strongly scented, [...]
Definition The Rorschach technique, sometimes known as the Rorschach test or the inkblot test, is a projective personality assessment based on the test taker’s reactions to a series of 10 inkblot pictures. The Rorschach technique is the most widely used projective psychological test. The Rorschach is used to help assess personality structure and identify emotional [...]
Definition Rivastigmine is a drug used to treat symptoms of Alzheimer’s disease. In the United States, rivastigmine is sold as the brand name drug Exelon. Purpose Rivastigmine is used to treat symptoms of Alzeheimer’s disease in individuals with mild to moderate illness. It has also been used to treat dementia caused by other conditions such [...]