报告题目：Inhibitory-autapse-enhanced vibrational resonance in a single neuron
报告时间：2022年2月11日（周五）上午9：00
报告地点：一号楼715会议室
报告人：姚成贵
邀请人：帅建伟 研究员
个人简介：姚成贵，嘉兴学院南湖学者特聘教授，入选浙江省高校中青年学科带头人，浙江省第二届高校领军人才培养计划-高层次拔尖人才。博士毕业于于中科院武汉物理与数学研究所。主要研究方向：非线性动力学，同步，共振，神经动力学及其数学建模。目前发表SCI论文30多篇，现主持国家自然科学基金面上项目，主持完成国家自然科学基金青年基金项目，浙江省自然科学基金面上项目，中国博士后基金。
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。
