Delay-induced synchronization transitions in small-world neuronal networks with hybrid synapses

Delay-induced synchronization transitions in small-world neuronal networks with hybrid synapses
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具有混合突触的小世界神经元网络中延迟引起的同步转换

DOI:
10.1016/j.chaos.2012.05.005
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发表时间:
2013-03
期刊:
Chaos Solitons & Fractals
影响因子:
--
通讯作者:
Yu, Haifeng
Yu, Haifeng
中科院分区:
其他
文献类型:
--
作者:
Yu, Haitao;Wang, Jiang;Liu, Qiuxiang;Sun, Jianbing;Yu, Haifeng

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我们研究了具有混合兴奋-抑制突触的突发神经元的小世界网络中延迟诱导的同步转换。数值结果表明,神经元时空同步性的转变不仅可以由信息传递延迟的变化来诱导,而且可以通过改变抑制性突触的概率和重连概率来诱导。延迟可以促进或破坏混合小世界神经元网络中神经元活动的同步。特别是,区域的同步和非同步出现间歇性的延迟增加。此外,对于小概率和高概率的抑制性突触,间歇性同步转换相对较深,而对于中等概率的抑制性突触,同步转换似乎不太深。更重要的是,我们发现,只要延迟适当,一个合适的重新布线网络拓扑结构总是可以增强同步神经元的活动。
We study delay-induced synchronization transitions in small-world networks of bursting neurons with hybrid excitatory-inhibitory synapses. Numerical results show that transitions of the spatiotemporal synchrony of neurons can be induced not only by the variations of the information transmission delay but also by changing the probability of inhibitory synapses and the rewiring probability. The delay can either promote or destroy synchronization of neuronal activity in the hybrid small-world neuronal network. In particular, regions of synchronization and nonsynchronization appear intermittently as the delay increases. In addition, for smaller and higher probability of inhibitory synapses, the intermittent synchronization transition is relative profound, while for the moderate probability of inhibitory synapses, synchronization transition seems less profound. More importantly, it is found that a suitable rewired network topology can always enhance the synchronized neuronal activity if only the delay is appropriate.
DOI: 10.1007/978-3-540-71269-5
发表时间: 2007-10
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