Persistence and phase synchronisation properties of fixational eye movements S. Moshel, A. Z. Zivotofsky, L. Jin-Rong, R. Engbert, J. Kurths, R. Kliegl and S. Havlin Eur. Phys. J. Special Topics, 161 (2008) 207-223 Published online: 19 June 2008 DOI: 10.1140/epjst/e2008-00762-3