1. Max-Planck-Institute for Dynamics and Self-Organization, Bernstein Center for Computational Neuroscience, Faculty of Physics, Göttingen University, D-37073 Göttingen, Germany; and Kavli Institute for Theoretical Physics, Santa Barbara, CA 93106–4030, USA.
2. Lewis-Sigler Institute for Integrative Genomics, Department of Physics, Princeton University, Princeton, NJ 08544, USA.
3. Physical Sciences–Oncology Center, Northwestern Institute on Complex Systems, Departments of Applied Mathematics and Physics, Northwestern University, Evanston, IL 60208, USA.
4. Institute for General Zoology and Animal Physiology, University of Jena, D-07743 Jena, Germany.
5. Bernstein Focus for Neurotechnology, Göttingen University, D-37073 Göttingen, Germany.
6. School of Biology, Göttingen University, D-37073 Göttingen, Germany.
7. Department of Biology, Randolph-Macon College, Ashland, VA 23005, USA.
8. Department of Community and Family Medicine, Duke Institute for Brain Sciences, Duke University, Durham, NC 27710, USA.