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徐克生教授

时间:2019-10-15 11:42点击:

 

江苏大学特聘教授

报告题目: Diversity of neuronal activity is provided by hybrid synapses报告题目: 具有超突触耦合神经网络的动力学多样性研究

报告摘要:Many experiments have evidenced that electrical and chemical synapses -- hybrid synapses -- coexist in most organisms and brain structures. We here present a model of neural network built with hybrid synapses to investigate the emergence of global and collective dynamics states. Our results are that in the networks with weak electrical coupling, the synchrony states generated by this architecture are mainly controlled by heterogeneity among neurons and the balance of its excitatory and inhibitory inputs. In networks with strong electrical coupling, diverse dynamical states arise from different combinations of excitatory and inhibitory weights. We show that the synchronous firing, cluster synchrony, and various ripples events (such as traveling waves) emerge by slight modification of chemical coupling weights. For large enough electrical synapse coupling, the whole neural networks become synchronized. Our results pave a way in the study of the dynamical mechanisms and computational significance of the contribution of mixed synapse in the neural functions.

报告人简介:徐克生,男,江苏大学理学院,江苏大学特聘教授、海外留学归国人员。2015年6月毕业于华东师范大学理论物理专业,研究方向为计算神经科学与复杂神经系统,研究内容主要从事神经网络记忆的探索与研究,以及无规则神经元激发对于神经元网络记忆的影响。同时也分析和处理神经元系统的大数据以及神经元数据的可视化。2013到美国纽约大学访学一年(联合培养博士研究生)。2015年8月至2019年6月,智利瓦尔帕来索大学神经交叉科学中心博士后,2019年加入江苏大学。主持国家自然基金项目两项: 中国留学基金和智利国家自然基金。在 PRE等国际期刊发表 10 篇SCI 论文,总共IF>20。

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