Sustained activity with low firing rate in a recurrent network regulated by spike-timing-dependent plasticity
Sustained activity with low firing rate in a recurrent network regulated by spike-timing-dependent plasticity
复制标题
在由尖峰时间依赖性可塑性调节的循环网络中具有低放电率的持续活动
DOI：
10.1016/s0925-2312(02)00404-6
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发表时间：
2002
期刊：
影响因子：
6
通讯作者：
T. Fukai
中科院分区：
文献类型：
--
作者：
K. Kitano;Hideyuki Câteau;T. Fukai
为了研究spike- time -dependent plasticity （STDP）在网络水平上的作用，我们将STDP应用于皮层递归网络模型。我们发现STDP带来了双稳态神经活动的自组织，这对工作记忆功能至关重要。此外，我们的模拟表明，在持续活动期间实现了典型的两种发射模式，这取决于STDP的时间窗口；短时间窗口（~ 10 ms）产生异步激发活动，而较长的时间窗口（大于或等于20 ms）产生沿细胞组装链传播的同步尖峰包。
In order to study roles of spike-timing-dependent plasticity (STDP) at the network level, we applied STDP to a model of the cortical recurrent network. We found that STDP brought self-organization of a bistable neural activity that is essential for the working memory function. Furthermore, our simulations showed that the typical two firing patterns during the persistent activity were achieved, which depend on the time window of STDP; the short time window (∼10 ms ) yielded an asynchronous firing activity, whereas the longer one (⩾20 ms ) produced a synchronous spike packet propagating along a chain of cell assemblies.
影响因子：
2.5
作者：
R. Traub;R. Wong;R. Miles;H. Michelson
通讯作者：
R. Traub;R. Wong;R. Miles;H. Michelson