Stabilizing synchrony by inhomogeneity

Scientific Reports
Ehsan Bolhasani, A Valizadeh

Abstract

We show that for two weakly coupled identical neuronal oscillators with strictly positive phase resetting curve, isochronous synchrony can only be seen in the absence of noise and an arbitrarily weak noise can destroy entrainment and generate intermittent phase slips. Small inhomogeneity-mismatch in the intrinsic firing rate of the neurons-can stabilize the phase locking and lead to more precise relative spike timing of the two neurons. The results can explain how for a class of neuronal models, including leaky integrate-fire model, inhomogeneity can increase correlation of spike trains when the neurons are synaptically connected.

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Citations

Feb 26, 2020·Scientific Reports·Abolfazl ZiaeemehrAida Sheshbolouki
Feb 6, 2020·Chaos·Ehsan BolhasaniMatjaž Perc
May 8, 2021·Physical Review Letters·Yoshiki SugitaniAdilson E Motter

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