Brain Scans Reveal Drugs' Effects On Attention.
Fuente: Brain Scans Reveal Drugs' Effects On Attention Los escáneres cerebrales muestran los efectos de las drogas "en la atención " ScienceDaily (Oct. 14, 2011) — Scientists have developed a way to evaluate new treatments for some forms of attention deficit disorder. Scientists have developed a way to use PET scans to test if drugs are helping mice that have been genetically engineered to have a form of attention deficit. In the brain of the altered mouse (right), low dopamine levels result in a brighter image. (Credit: David Gutmann, MD, PhD) Working in mice, researchers at Washington University School of Medicine in St. Louis showed that they can use brain scans to quickly test whether drugs increase levels of a brain chemical known as dopamine. In a study published last year, the same group found that raising dopamine levels in mice alleviates attention deficits caused by neurofibromatosis type 1 (NF1), a condition that affects more than 100,000 peopl...