2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/126215Dynamic 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.11 pages, 6 figuresChaotic DynamicsAdaptation and Self-Organizing SystemsBiological PhysicsMedical Physicstext