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T Placebo - Lobe - Lobe placebo effect remains one of the most baffling mysteries in medicine. Several studies are pointing to a biological basis for the placebo effect, with the latest research focused on a region of the brain known as the mid-frontal gyrus, which runs along the frontal lobes just above the eyes.
The studycarried out by Marwan Baliki and Vania Apkarian at Northwestern University in Chicago, involved a small number of chronic-pain patients with osteoarthritis of the knee. It is a rare example of a placebo study based on real patients rather than healthy volunteers who are just exposed to pain-inducing experiments to see how they feel when given a placebo.
Baliki used an MRI scanner to observe in real time how the brain of patients Placebo - Lobe - Lobe to a placebo — in this case a sugar pill instead of a painkiller. He concluded that this brain region seemed to be quite separate from another region of the brain known to be involved in responding to the effects of real painkilling drugs. We found that it does not, suggesting that this brain region is specific for placebo analgesia.
The findings suggest a biological basis for the placebo effect and raise the prospect of tests to see if individuals are going to be good placebo responders or not. For those who are responders, it could mean targeting them with placebo pain treatments that might work specifically for them. It is not, however, the first time that scientists have identified a brain region involved Once Again Right Away - Liza Minnelli, Robert De Niro - New York, New York (Original Motion Picture the placebo effect.
In for instance Jon-Kar Zubieta, now at the University of Utah, suggested that the nucleus accumbens, which lies at the top of the brain stem, plays a role in moderating pain after injections of a placebo composed of harmless saline solution — at least in healthy volunteers.
Other researchers, meanwhile, have focused on identifying the genetic basis of the placebo effect. The idea is that these signalling pathways are under genetic control and that some people may be blessed with certain combinations of genes that make them more or My Old Flame - Various - Hits From The War Years responsive to a placebo effect.
Certainly, the more that scientists investigate the placebo, the weirder the effect seems to be. Another study in on asthma patients found that placebo Placebo - Lobe - Lobe had no effect on increasing lung function. If that is found to be the case, things could get really interesting. Topics Placebo effect The Observer.
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