Electrical Stimulation in the Brain (IMAGE) University of Pittsburgh Caption Electrical stimulation through microelectrode arrays (white) in the brain activate microglia (green), pericyte (red; cells that are directly infected by SARS-Cov-2), and blood vessel activity (blue) to modulate neural activity. Credit Image by Steven Wellman 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.