Spiking signatures of spontaneous activity bursts in hippocampal cultures.
Spiking signatures of spontaneous activity bursts in hippocampal cultures.
复制标题
海马培养物中自发活动的尖峰特征爆发。
DOI:
10.3389/fncom.2011.00046
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发表时间:
2011
影响因子:
3.2
通讯作者:
Kazantsev V
中科院分区:
文献类型:
--
作者:
Pimashkin A;Kastalskiy I;Simonov A;Koryagina E;Mukhina I;Kazantsev V
Dense dissociated hippocampal cultures are known to generate spontaneous bursting electrical activity which can be recorded by multielectrode arrays. We have analyzed spatio-temporal profiles of the distribution of spikes in the bursts recorded after 2 weeks in vitro. We have found a statistically significant similarity between the spiking patterns in sequential bursting events, we refer to these spiking patterns as spiking signatures. Such spiking signatures may appear in different parts of the bursts, including the activation patterns – the first spike times in the bursts, and deactivation patterns – the last spike times in the bursts. Moreover, these patterns may display apparent time scaling, e.g., they may be replayed in the subsequent bursts at different speeds, while preserving the spiking order. We discuss how such properties of the bursts may be associated with the formation of repeatable signaling pathways in cultured networks in vitro.
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