Related StoriesUCSF analysis on feeling disorders aims to progress understanding and treatment of depressionNew device may help diagnose and treat Parkinson's disease in early stagesStudy displays mindfulness meditation reduces discomfort better than placebo To the best of our understanding, this is the first demonstration that contrast sensitivity can be improved by simple training, says Bavelier. When people play action games, they’re changing the brain’s pathway in charge of visual processing.None of the individuals were current smokers, and none were exposed to relevant seasonal allergens through the study. None of the individuals had had an onset of asthma symptoms before the age of 6 years. Study Design The scholarly study was a randomized, placebo-controlled, double-blind, parallel-group trial lasting up to 26 weeks. Patients were seen every 14 days and were randomly assigned to treatment at week 2. The treatment with a humanized monoclonal interleukin-5 antibody, mepolizumab or the same placebo was given intravenously over a 30-minute period at weeks 2, 6, 10, 14, and 18.