POSTER PRESENTATION Open Access Dynamics of neural systems in epilepsy

Epilepsy is a nervous system disorder. It is characterized by a brain dysfunction activity that is expressed by an occurrence of electrical discharges at high frequency. The zone called epileptogenic region, is assumed involved in initiating seizures and whose removal is necessary for complete abolition of seizures [1]. The seizure emergence is interpreted as a bifurcation, i.e. a nonlinear transition from one state to another. A seizure transition analysis is necessary to understand the brain activity associated with this complex phenomenon, this involves making electro-encephalographic (EEG) recordings. For this aim, we study relevant experimental data of epileptic rat, the EEG shows two types of spikes:- The first type (type 1) has bursts of high frequency spikes form.- The second type (type 2) is characterized by a large amplitude spike followed by a slow wave