摘要
Many animals can detect the multi-frequency signals from their external surroundings.The understanding for underlying mechanism of signal detection can apply the theory of vibrational resonance,in which the moderate high frequency driving can maximize the nonlinear system's response to the low frequency subthreshold signal.In this work,we study the roles of chemical autapse on the vibrational resonance in a single neuron for signal detection.We reveal that the vibrational resonance is strengthened significantly by the inhibitory autapse in the neuron,while it is weakened typically by the excitatory autapse.It is generally believed that the inhibitory synapse has a suppressive effect in neuronal dynamics.However,we find that the detection of the neuron to the low frequency subthreshold signal can be improved greatly by the inhibitory autapse.Our finding indicates that the inhibitory synapse may act constructively on the detection of weak signal in the brain and neuronal system.
作者
何志威
姚成贵
帅建伟
Tadashi Nakano
Zhiwei He;Chenggui Yao;Jianwei Shuai;Tadashi Nakano(Department of Mathematics,Shaoxing University,Shaoxing 312000,China;College of Mathematics,Physics and Information Engineering,Jiaxing University,Jiaxing 314000,China;Department of Physics,State Key Laboratory of Cellular Stress Biology,Innovation Center for Cell Signaling Network,Xiamen University,Xiamen 361102,China;Graduate School of Frontier Biosciences,Osaka University,5408570,Japan)
基金
Project supported partially by the National Natural Science Foundation of China(Grant Nos.11675112,11705116,11675134,and 11874310)
the National Natural Science Foundation of China for the 111 Project(Grant No.B16029).
