Synchrony-induced switching behavior of spike pattern attractors created by spike-timing-dependent plasticity
Synchrony-induced switching behavior of spike pattern attractors created by spike-timing-dependent plasticity
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DOI：
10.1162/neco.2007.19.10.2720
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发表时间：
2007-10-01
影响因子：
2.9
通讯作者：
Aoyagi, Toshio
中科院分区：
文献类型：
--
作者：
Aoki, Takaaki;Aoyagi, Toshio
尽管在实验中已经观察到神经元群体中的情境依赖性峰值同步，但其功能作用仍然存在争议。在这项建模研究中，我们证明了在一个根据峰值时间依赖的可塑性组织的峰值神经元网络中，统一输入的同步程度的增加可以导致在学习过程中呈现的记忆活动模式之间的转换。此外，在适当的学习条件下，可以诱导从单个模式到多个模式的上下文相关转换。这些发现表明，通过改变网络的动态，神经元同步在控制信息流中的一个可能的功能作用。
Although context-dependent spike synchronization among populations of neurons has been experimentally observed, its functional role remains controversial. In this modeling study, we demonstrate that in a network of spiking neurons organized according to spike-timing-dependent plasticity, an increase in the degree of synchrony of a uniform input can cause transitions between memorized activity patterns in the order presented during learning. Furthermore, context-dependent transitions from a single pattern to multiple patterns can be induced under appropriate learning conditions. These findings suggest one possible functional role of neuronal synchrony in controlling the flow of information by altering the dynamics of the network.