Human Perceptual Overestimation of Whole-Body Roll Tilt in Hyper-Gravity 1 2 Running title : Roll Perception in Hyper-Gravity 3 4

Human Perceptual Overestimation of Whole-Body Roll Tilt in Hyper-Gravity 1 2 Running title: Roll Perception in Hyper-Gravity 3 4 Torin K. Clark 5 Michael C. Newman 6 Charles M. Oman 7 Daniel M. Merfeld 8 Laurence R. Young 9 10 11 1 Man Vehicle Laboratory 12 Department of Aeronautics and Astronautics 13 Massachusetts Institute of Technology 14 Cambridge, MA, USA 15 16 2 Charles Stark Draper Laboratory, Inc. 17 Cambridge, MA, USA 18 19 3 National Aerospace Training and Research Center 20 Southampton, PA, USA 21 22 4 Jenks Vestibular Physiology Lab 23 Massachusetts Eye and Ear Infirmary 24 Department of Otology and Laryngology 25 Harvard Medical School 26 Boston, MA, USA 27 28 29 Address for correspondence: 30 Torin K Clark 31 Man Vehicle Laboratory 32 Massachusetts Institute of Technology 33 77 Massachusetts Ave. 37-219 34 Cambridge, MA, 02139 35 torin@mit.edu 36 fax +1 (617) 258-8111 37 phone +1 (617) 253-5487 38 39