First Report (image) Washington University in St. Louis Share Print E-Mail Caption In 2005, neuroscientist Herzog demonstrated that astrocytes, like neurons, have internal clocks. His test subjects made the cover of an issue of the Journal of Neuroscience that year. Credit Courtesy of The Journal of Neuroscience Usage Restrictions None Share Print E-Mail 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.