The paradox is that if we advance in knowledge and discovered that this factor has specific therapeutic properties (explained), and not a placebo. Some authors believe that at bottom the placebo effect is ignorance. Possibly so. The question is what we know about that aspect ignored: is there a common mechanism for all placebo effects?. Myths about the placebo effect The placebo differentiate between organic and mental diseases: This proposal, based on the dualistic separation between the organic and the mental (questionable in itself), it ignores the hundreds of evidence of the effectiveness of placebo in reducing of, for example, appropriate pain objectified an organic lesion. It has been shown effective in various types of pain (headaches, sciatica, dysmenorrhoea), immune mechanisms, ulcerative colitis, tardive dyskinesia, congestive heart failure, etc, and not very effective in other disorders (OCD, dementia?). The placebo can have an effect on objective measures (blood pressure, gastric motility, lung function), including the type nocebo (vomiting, sweating, rashes). A recent study shows that half of residents in internal medicine at a U.S.
hospital believed that the placebo administered symptoms could discriminate between “real” and “imaginary or factitious.” Subjects respond to placebo have a definite personality: Attempts to identify personality characteristics not only, but other demographics to predict the response to placebo have been unsuccessful so far. Even individuals tend to vary over time (sometimes significantly) in their response to placebo. In a series of experiments that have become a classic in the field, was administered to a group of volunteers with an electric shock of variable intensity between unpleasant and intolerable. .