Making a microelectrode (IMAGE) Virginia Tech Caption Virginia Tech researchers with the Fralin Biomedical Research Institute Center for Human Neuroscience Research construct carbon fiber microelectrodes for real-time detection of dopamine and serotonin activity in human patients. Credit Virginia Tech Usage Restrictions Please credit Virginia Tech 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.