Arvid Carlsson, Who Discovered a Treatment for Parkinson’s, Dies at 95 Dr. Carlsson determined the critical role of the brain chemical dopamine, leading to drugs for Parkinson’s disease and a Nobel Prize. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Solar storms coming THIS WEEK: Coronal hole on Sun faces directly towards EARTHAutumn Equinox 2018: When is the September equinox? When is the first day of autumn?Yellowstone volcano FIRE: NASA satellites reveal inferno in park's BIGGEST ever wildfireScores of Dead Elephants Found in Botswana ‘Poaching Frenzy’Green Comet 21P approach: WATCH moment Green Comet lights up in the night skyPruitt’s Spending on Security More Than Doubled in 11 Months, E.P.A. Investigator Says