Nonlinear-response effects in stochastic resonance are investigated. An analytic solution is obtained in the framework of the adiabatic approximation. It is found that the input signal strength plays an important role in affecting the stochastic resonance behavior. Our analytic predictions fit well both numerical calculations and experimental results.

• Received 17 July 1992

DOI:https://doi.org/10.1103/PhysRevE.47.2321