tissue scan (IMAGE) Rice University Caption Scan of mouse hippocampus and cortex, where the red signal derives from immunostaining for the synthetic marker developed by the Szablowski lab and the blue from the immunostaining of c-Fos, an endogenous protein whose production is heightened by increased neuronal activity. Credit (Image courtesy of the Szablowski lab/Rice University) Usage Restrictions Must credit the Szablowski lab/Rice University. License Original 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.