A University of Maryland (UMD) team has been awarded a $1 million grant by the National Science Foundation’s Integrative Strategies for Understanding Neural and Cognitive Systems (NCS) program to investigate the complex effects of intestinal serotonin on both gut and brain health. The project, “Developing engineering solutions to investigate microbiome-to-neuron communication,” aims to provide a more realistic picture of the complex gut-microbiome-brain axis system (GMBA).