Brain-First, and Gut-First (IMAGE) IOS Press Caption Leading experts in Parkinson's disease explore the hypothesis that Parkinson's disease can be divided into two subtypes: brain-first, and gut-first. Credit Lundbeck Foundation. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.