Brain Cells (IMAGE) University of Wisconsin-Madison Caption In a new study of mice, neuroscience professor Xinyu Zhao of University of Wisconsin-Madison identifies genetic activity in the adult hippocampus that causes stem cells to mature into fully formed neurons. Green: neural stem cells, some differentiating into neurons. Red: immature neurons. Credit Yu Gao, Waisman Center, University of Wisconsin-Madison 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.