抄録
This study is based on the utilization of noise as the main approach to overcoming the problems associated with spike transmission in neuromorphic excitable media, such as receiving weak signals as inputs. The main objective of this study is to consider the dependence of noise on membrane potential. This dependence allows proper spike transmission, discriminating weak signals from parasitic fluctuations that could generate a fake response. Inspired by this idea, we investigate how noise enhances the performance of spike transmission in serially connected electrical circuits receiving subthreshold inputs. Electrical simulation results for a small number of excitable circuits connected with each other showed that with the assistance of noise, spike transmission is activated even in the presence of subthreshold signals. Moreover, dynamical noise proved to be an efficient technique for preventing unwanted spikes.
