Image 2 (IMAGE) Harvard University Caption Microglia (in green) in a sea of different excitatory neuron types (colored red or blue). A new study shows how microglia are prompted to change their state to adapt to different areas of the brain. Credit Arlotta Lab Usage Restrictions Credit must be given to the creator. License CC BY 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.