报 告 人：徐克生
报告题目：Short-term plasticity promotes synchronization of coupled chaotic oscillators in excitatory–inhibitory networks
报告时间：2025年9月20日（周六）下午2：00
报告地点：物理与电子工程学院428会议室
主办单位：物理与电子工程学院、科学技术研究院
报告人简介：
徐克生，江苏大学教授、硕士生导师。2015年6月毕业于华东师范大学物理系，获理学博士学位，师从刘宗华教授。徐教授在Physical Review E、Chaos、Nonlinear dynamics、Chaos Soliton & Fractals等国际期刊发表30篇SCI学术论文，是Physical Review E、Nonlinear dynamics等国际期刊审稿人，主持完成了智利国家优秀博士后项目和江苏大学高层次人才启动项目，主持国家自然基金项目1项。
报告摘要：
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.