Hongjun Song is a Perelman Professor of Neuroscience at the Department of Neuroscience, The Perelman School of Medicine, University of Pennsylvania. He obtained his B.S. (Biology) at Peking University, China in 1992, earned his MA, M Phil (Biology) at Columbia University, New York in 1995, and completed his Ph.D. (Biology) studies at the University of California at San Diego, La Jolla in 1998. Research in his laboratory focuses on two core topics: (1) neural stem cell regulation and neurogenesis in the developing and adult mammalian brain and how these processes affect neural function; (2) epigenetic and epitranscriptomic mechanisms and their functions in the mammalian nervous system. The lab is also interested in addressing how dysfunction of these mechanisms may be involved in brain disorders.