Motor Cortex (IMAGE) Howard Hughes Medical Institute Caption Inside the mouse brain's motor cortex, one set of neurons (green) sends projections to the thalamus, and another set (magenta) projects to a brainstem region called the medulla. Credit MouseLight Project, Janelia Research Campus Usage Restrictions Must use with credit. 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.