1 1 2 3 Title: Light exposure induces short- and long-term changes in the excitability of retinorecipient 4 neurons in suprachiasmatic nucleus 5 6 Joseph LeSauter 1 , Rae Silver 1,2 , Robin Cloues 3 and Paul Witkovsky 4 7 8 1 Department of Psychology, Barnard College, 3009 Broadway, New York, NY 10027. 9 2 Department of Psychology, Columbia University, 1190 Amsterdam Avenue, New York, NY 10 10027 and Department of Pathology and Cell Biology, College of Physicians and Surgeons of 11 Columbia University, New York, NY 10032. 12 3 Department of Psychology, Regis College, Denver, CO 80221 13 4 Department of Ophthalmology, New York University School of Medicine, New York, NY 14 10016. 15 . 16 17 18 Running title: Light-induced changes in identified SCN neurons 19 20 Address for Correspondence: 21 Rae Silver 22 Columbia University, Mail Code 5501 23 1190 Amsterdam Avenue, 24 New York, NY 10027 25 EMAIL: QR@columbia.edu 26 TEL: 212 854 5531 27 28 29 30 31 32 Articles in PresS. J Neurophysiol (May 18, 2011). doi:10.1152/jn.00060.2011 Copyright © 2011 by the American Physiological Society.