Alarcón Cor, TomásPérez Madrid, AgustínRubí Capaceti, José Miguel2011-07-072011-07-0719981063-651Xhttps://hdl.handle.net/2445/18899We propose a method to analytically show the possibility for the appearance of a maximum in the signal-to-noise ratio in nonpotential systems. We apply our results to the FitzHugh-Nagumo model under a periodic external forcing, showing that the model exhibits stochastic resonance. The procedure that we follow is based on the reduction to a one-dimensional dynamics in the adiabatic limit and in the topology of the phase space of the systems under study. Its application to other nonpotential systems is also discussed.7 p.application/pdfeng(c) American Physical Society, 1996Física estadísticaTermodinàmicaSistemes no linealsFisica mèdicaBiofísicaStatistical physicsThermodynamicsNonlinear systemsMedical physicsBiophysicsinfo:eu-repo/semantics/article134334info:eu-repo/semantics/openAccess