Belden, J. Mansoor, M.M. Hellum, A. Rahman, S.R. Meyer, A. Pease, C. Pacheco, J. Koziol, S. Truscott, T.T. Supplementary Video S4 for How vision governs the collective behavior of dense cycling pelotons Supplementary Video 4 shows a view from a forward-facing GoPro camera mounted to a rider's handlebars shows the diamond pattern and accommodation of a transverse motion. The cyclist to the left front flank moves to the right, prompting a transverse motion of the cyclist carrying the GoPro. Video credit: GoPro World. collective behaviour;cycling pelotons;visual sensory system;visual field;bicycling 2019-06-18