Does the onset of epileptic seizure start from a bifurcation point? Fahimeh Nazarimehr, Seyed Mohammad Reza Hashemi Golpayegani and Boshra Hatef Eur. Phys. J. Special Topics, 227 7-9 (2018) 697-705 Published online: 19 October 2018 DOI: 10.1140/epjst/e2018-800013-1