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| | Placebo effect - encyclopedia article about Placebo effect. |
 | | Such a test or clinical trial In medicine, a clinical trial (synonyms: clinical studies, research protocols, medical research) is a research study. | | | Distinguishing between these effects can be a difficult problem for medical semiotics, or the study of how to interpret the patient's description of their ailments. | | | In such a trial there is a risk that subjects are influenced by interaction with the researchers - known as the experimenter effect. |
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http://encyclopedia.thefreedictionary.com/placebo+effect
(1820 words)
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| | Placebo - Open Encyclopedia |
| | Experimenters typically use placebos in the context of a clinical trial, in which a "test" group of patients receive the therapy being tested, and a "control" group receives the placebo. | | | A placebo is a medical treatment (operation, therapy, chemical solution, pill, etc.), which is administered as if it were a therapy, but which has no therapeutic value other than the placebo effect. | | | Often during these clinical trials, placebos have a positive or negative clinical effect on subjects tested. |
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http://open-encyclopedia.com/Placebo
(173 words)
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| | placebo - Hutchinson encyclopedia article about placebo |
| | The ‘placebo effect’, first named in 1945, demonstrates the control mind exerts over matter, bringing changes in blood pressure, perceived pain, and rates of healing. | | | The use of placebos in medicine is limited to drug trials, where a placebo is given alongside the substance being tested,to compare effects. | | | Any harmless substance, often called a ‘sugar pill’, that has no active ingredient, but may nevertheless bring about improvement in the patient's condition. |
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http://encyclopedia.farlex.com/placebo
(170 words)
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| | Placebo (disambiguation) - definition of Placebo (disambiguation) in Encyclopedia |
| | A placebo is an operation, a chemical solution or a pill, which doctors administer as if it were a therapy, but which they suppose to have no therapeutic value. | | | There are a number of meanings for the word placebo: | | | Placebo is also a Latin word meaning "I shall please". |
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http://encyclopedia.laborlawtalk.com/Placebo_(disambiguation)
(182 words)
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