Resonance phenomenon of interspike intervals from a spiking oscillator with two periodic inputs

We consider a spiking oscillator to which two periodic and synchronized inputs can be applied. As either input is applied, typical phenomena from the oscillator are phase locking and quasi-periodic behaviors. Applying both inputs and adjusting their parameters appropriately, the system behavior approaches a resonance point characterized by: (1) The state is quasi-periodic; (2) the output pulse-train is periodic; and (3) they are not synchronized with the periodic inputs. Generating such resonance phenomena is impossible in the single input case. We present a simple implementation method of the spiking oscillator and verify the typical phenomena in the laboratory