1. Department of Biology, Brandeis University, Waltham, Massachusetts;
2. Department of Cortical Structure and Function, Netherlands Institute for Neuroscience, Institute of the Royal Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands
3. Volen Center for Complex Systems, Brandeis University, Waltham, Massachusetts;
4. Sloan-Swartz Center for Theoretical Neurobiology, Brandeis University, Waltham, Massachusetts; and