Affiliation: | (1) Courant Institute of Mathematical Sciences, New York University, New York, NY 10012, USA;(2) Present address: Department of Physiology, University of Bern, Bühlplatz 5, 3012 Bern, Switzerland;(3) Center for Neural Science, New York University, New York, NY 10003, USA;(4) Department of Biological Science, Florida State University, Tallahassee, FL 32306, USA;(5) Developmental Neurobiology Section, NINDS, NIH, Bethesda, MD 20892–3700, USA |