1. Division of Chemistry and Chemical Engineering and Division of Biology, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, Research Group Neuralomics, Leibniz-Institute for Neurobiology, Brenneckestrasse 6, 39118 Magdeburg, Germany, and Max Planck Institute for Brain Research, Deutschordenstrasse 46, 60528 Frankfurt, Germany