Chaotic neuron clock

Details Chaotic neuron clock Chaotic neuron clock

2010-10-22

arxiv.org/abs/1010.4722v4

Chaos, Solitons & Fractals 44 (2011) 342-347

Biology

Quantitative Biology

Neurons and Cognition

Scientific paper

10.1016/j.chaos.2011.03.001

A simple threshold model of neuron firing (with the neuron membrane electrochemical potential governed by the chaotic Rossler attractor) has been analyzed by mapping the generated irregular spiking time-series into telegraph signals. In this model the fundamental frequency of the chaotic Rossler attractor provides (with a period doubling) the strong periodic component of the generated irregular signal. The exponentially decaying broad-band part of the spectrum of the Rossler attractor has been transformed by the threshold firing mechanism into a scaling tale. These results are compared with irregular spiking time-series obtained in vitro from a spontaneous activity of hippocampal (CA3) singular neurons (rat's brain slice culture). The comparison shows good agreement between the model and experimentally obtained spectra.

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