Resemblances and differences in mechanisms of noise-induced resonance
  Systems showing stochastic resonance (SR) or coherent resonance (CR) share some features, in particular the nearby periodic character of the signal. We show that in spite of this resemblance the different underlying dynamics can be detected in experimental data by studying the histogram of inter-spikes times and some statistical properties like two-times correlation functions. We discuss the possible relevance for climate modeling. 
R.Centurelli, S.Musacchio, R.A.Pasmanter and A.Vulpiani