報 告 人：徐克生

報告題目：Short-term plasticity promotes synchronization of coupled chaotic oscillators in excitatory–inhibitory networks

報告時間：2025年9月20日（周六）下午2：00    

報告地點：物理與電子工程學院428會議室        

主辦單位：物理與電子工程學院、科學技術研究院        

報告人簡介：

徐克生，江蘇大學教授、碩士生導師。2015年6月畢業于華東師范大學物理系，獲理學博士學位，師從劉宗華教授。徐教授在Physical Review E、Chaos、Nonlinear dynamics、Chaos Soliton & Fractals等國際期刊發表30篇SCI學術論文，是Physical Review E、Nonlinear dynamics等國際期刊審稿人，主持完成了智利國家優秀博士后項目和江蘇大學高層次人才啟動項目，主持國家自然基金項目1項。

報告摘要：

Experimental and theoretical studies provided evidence that coordinated actions of excitation and inhibition (EI) are balanced by combinations of synaptic weights and synaptic plasticity. Nevertheless, whether the dynamic nature of individual cells significantly contributes tothe emergence of spatiotemporal patterns under the consideration of short-term plasticity (STP) in neural networks is unclear and remainselusive. We present a coupled neural system of Hindmarsh–Rose neurons to understand the underlying mechanisms of irregular chaoticfiring activities in tuning the interaction of EI balance and STP, thereby controlling the emergence of collective behaviors. Through synapticweights tuning and STP for balancing the levels of excitation and inhibition, both EI networks of chaotic and nonchaotic cells with excitatoryconnections subject to STP produce a higher degree of synchronous firing patterns than those two EI networks without STP. Furthermore,the networks of chaotic cells produce complete synchronization more easily than the networks of nonchaotic cells under consideration ofSTP. The comparison with the results obtained in the networks of nonchaotic and chaotic cells implies that STP and synaptic weights aretwo ways of regulating the EI balance and, therefore, play a major but different role in the emergence of intermediate synchronous activities,coexisting multistable firing patterns, and complete synchronization.