1 NYU Neuroscience Institute, 450 East 29th Street, Room 931 East River Science Park, New York, NY 10016, USA. Electronic address: Gyorgy.Buzsaki@nyumc.org.
2 Department of Molecular and Cell Biology, University of California at Berkeley, Berkeley, CA 94720-3206, USA. Electronic address: dfreeman@calmail.berkeley.edu.