抄録
In this article, a universal mechanism governing entrainment limit is shown to exist under weak forcings. This underlying mechanism enables us to understand how and why entrainability is maximized; maximization of the entrainment range or that of the stability of entrainment for general forcings including pulse trains, and a fundamental limit of general m:n entrainment, are clarified from a unified, global viewpoint. These entrainment limits are verified in the Hodgkin-Huxley neuron model as an example.
