Dynamics of epileptiform activity in mouse hippocampal slices.
Dynamics of epileptiform activity in mouse hippocampal slices.
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DOI:
10.1007/s10867-011-9216-x
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发表时间:
2011-06
影响因子:
1.8
通讯作者:
Bazhenov, Maxim
中科院分区:
文献类型:
--
作者:
Filatov, Gregory;Krishnan, Giri P.;Rulkov, Nikolai F.;Bazhenov, Maxim
Increase of the extracellular K + concentration mediates seizure-like synchronized activities in vitro and was proposed to be one of the main factors underlying epileptogenesis in some types of seizures in vivo. While underlying biophysical mechanisms clearly involve cell depolarization and overall increase in excitability, it remains unknown what qualitative changes of the spatio-temporal network dynamics occur after extracellular K + increase. In this study, we used multi-electrode recordings from mouse hippocampal slices to explore changes of the network activity during progressive increase of the extracellular K + concentration. Our analysis revealed complex spatio-temporal evolution of epileptiform activity and demonstrated a sequence of state transitions from relatively simple network bursts into complex bursting, with multiple synchronized events within each burst. We describe these transitions as qualitative changes of the state attractors, constructed from experimental data, mediated by elevation of extracellular K + concentration.
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DOI:
10.1177/1073858408317955
发表时间:
2008-10
期刊:
The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry
影响因子:
--
作者:
Fröhlich F;Bazhenov M;Iragui-Madoz V;Sejnowski TJ
通讯作者:
Sejnowski TJ
影响因子:
3.4
作者:
Hinterkeuser, S;Schröder, W;Steinhäuser, C
通讯作者:
Steinhäuser, C
影响因子:
8.6
作者:
ARECCHI, FT;MEUCCI, R;GADOMSKI, W
通讯作者:
GADOMSKI, W
影响因子:
8.6
作者:
Allaria, E;Arecchi, FT;Meucci, R
通讯作者:
Meucci, R
DOI:
10.1016/b978-012373649-9.50029-6
发表时间:
2008-01-01
期刊:
COMPUTATIONAL NEUROSCIENCE IN EPILEPSY
影响因子:
--
作者:
Froehlich, Flavio;Timofeev, Igor;Bazhenov, Maxim
通讯作者:
Bazhenov, Maxim