Serotonin Neurons (IMAGE) Champalimaud Centre for the Unknown Caption Advanced techniques to directly control the activity of serotonin neurons in the brain are used to illuminate serotonin's biological functions. Credit Champalimaud Centre for the Unknown/Sara Matias Usage Restrictions credit attribution 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.