Noise controlled synchronization in potassium coupled neural models
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Noise controlled synchronization in potassium coupled neural models. / Postnov, Dmitry E; Ryazanova, Ludmila S; Zhirin, Roman A; Mosekilde, Erik; Sosnovtseva, Olga.
I: International Journal of Neural Systems, Bind 17, Nr. 2, 01.04.2007, s. 105-13.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Noise controlled synchronization in potassium coupled neural models
AU - Postnov, Dmitry E
AU - Ryazanova, Ludmila S
AU - Zhirin, Roman A
AU - Mosekilde, Erik
AU - Sosnovtseva, Olga
PY - 2007/4/1
Y1 - 2007/4/1
N2 - The paper applies biologically plausible models to investigate how noise input to small ensembles of neurons, coupled via the extracellular potassium concentration, can influence their firing patterns. Using the noise intensity and the volume of the extracellular space as control parameters, we show that potassium induced depolarization underlies the formation of noise-induced patterns such as delayed firing and synchronization. These phenomena are associated with the appearance of new time scales in the distribution of interspike intervals that may be significant for the spatio-temporal oscillations in neuronal ensembles.
AB - The paper applies biologically plausible models to investigate how noise input to small ensembles of neurons, coupled via the extracellular potassium concentration, can influence their firing patterns. Using the noise intensity and the volume of the extracellular space as control parameters, we show that potassium induced depolarization underlies the formation of noise-induced patterns such as delayed firing and synchronization. These phenomena are associated with the appearance of new time scales in the distribution of interspike intervals that may be significant for the spatio-temporal oscillations in neuronal ensembles.
KW - Action Potentials
KW - Cell Communication
KW - Cortical Synchronization
KW - Models, Neurological
KW - Potassium
KW - Signal Transduction
M3 - Journal article
C2 - 17565506
VL - 17
SP - 105
EP - 113
JO - International Journal of Neural Systems
JF - International Journal of Neural Systems
SN - 0129-0657
IS - 2
ER -
ID: 33812505