Karl Deisseroth is Professor of Bioengineering and Psychiatry and serves as Director of Undergraduate Education in Bioengineering at Stanford University. He is leader of the Deisseroth Lab, Stanford University. He earned his A.B. from Harvard and M.D. and Ph.D. from Stanford. He is also a practicing psychiatrist board-certified by the American Board of Psychiatry and Neurology. Deisseroth has developed and applied novel technologies for controlling (optogenetics) and imaging (ClARITY) specific elements within intact biological systems. He continues to develop and apply new technologies to study physiology and behavior in health and disease, as well as train researchers around the world.