On-Off Intermittency in Time Series of Spontaneous Paroxysmal Activity   in Rats with Genetic Absence Epilepsy
  Dynamic behavior of complex neuronal ensembles is a topic comprising a streamline of current researches worldwide. In this article we study the behavior manifested by epileptic brain, in the case of spontaneous non-convulsive paroxysmal activity. For this purpose we analyzed archived long-term recording of paroxysmal activity in animals genetically susceptible to absence epilepsy, namely WAG/Rij rats. We first report that the brain activity alternated between normal states and epilepsy paroxysms is the on-off intermittency phenomenon which has been observed and studied earlier in the different nonlinear systems. 
A.E. Hramov, A.A. Koronovskii, I.S. Midzyanovskaya, E. Sitnikova, C.M.   van Rijn