Enhanced Response to Subthreshold Signals by Phase Noise in a Hodgkin—Huxley Neuron

摘要: Noise has been revealed as an important cue for understanding the extraordinary ability of sensory neurons to detect or amplify external weak signals. We demonstrate that phase noise originating from time-varying signal can enable excitable neuron excite spikes upon a periodic even though amplitude is subthreshold. In addition, we find there exists optimal value on at which neuron's response subthreshold be significantly improved, resulting in resonance-like behavior. Since makes aperiodic, our findings show might evolve with better performance detecting aperiodic signals than