Before revision:  These models reveal three generically possible low-dimensional dynamical behaviors: time-scale resonance (TR), a new simplified version of stochastic resonance - which  call steady state stochastic resonance (SSR) - as well as noise-induced phase transitions . Thereby, our study not only opens up new directions for optimality in SOC but also applies to a very wide class of dynamical systems .
After revision:  These models reveal three generically possible low-dimensional dynamical behaviors: time-scale resonance (TR), a new simplified version of stochastic resonance - which call steady state stochastic resonance (SSR) - as well as noise-induced phase transitions .