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Updated: Jul 31, 2026

A Method for High Fidelity Optogenetic Control of Individual Pyramidal Neurons In vivo
Published on: September 2, 2013
Synchronized firing of FitzHugh-Nagumo neurons by noise
Hiroyuki Kitajima1, Jürgen Kurths
1Faculty of Engineering, Kagawa University, 2217-20 Hayashi, Takamatsu, Kagawa 761-0396, Japan. kitaji@eng.kagawa-u.ac.jp
Abstract:
We investigate the influence of noise on synchronization between the spiking activities of neurons with external impulsive forces. We first analyze the dependence of the synchronized firing on the amplitude and the angular frequency of the impulsive force in the noise-free system. Three cases (regular spiking, traveling wave, and chaotic spiking) with low synchronized firing are chosen to study effects due to noise. In each case we find that small noise can be a promoter of synchronization phenomena in neural activities, by choosing an appropriate noise intensity acting on some of the neurons.
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