Noise controlled synchronization in potassium coupled neural models
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Updated: Jul 14, 2026

Real-time Electrophysiology: Using Closed-loop Protocols to Probe Neuronal Dynamics and Beyond
Published on: June 24, 2015
Dmitry E Postnov1, Ludmila S Ryazanova, Roman A Zhirin
1Physics Department, Saratov State University, Astrakhanskaya Street 83, Saratov, 410026, Russia.
Abstract:
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.
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