Students at the Gatsby Unit study toward a PhD in either Theoretical Neuroscience or Machine Learning, with minor emphasis in the complementary field. Collaborative projects, for example with an experimental neuroscience group at UCL or elsewhere, are welcome, although the primary project supervisor should be one of the Gatsby (or adjunct) staff. The Gatsby Unit is a world-class centre for theoretical neuroscience and machine learning. We provide a unique opportunity for a critical mass of theoreticians to interact closely with each other and with other world-class research groups across UCL. Teaching is supplemented with regular research talks, journal clubs and reading groups, extensive seminar programmes and participation in international conferences. As a student you will have ready access to all members of academic staff, not just your immediate supervisors. It is expected that most students will go on to postdoctoral positions in institutions across the world although some may take up posts in industry as senior research scientists or similar. Most of our graduates go on to postdoctoral positions in academia, although a few students have been known to take up medicine or senior positions in industry.