“School of Cognitive Sciences”
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| Paper IPM / Cognitive Sciences / 14044 |
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We show that for two identical neuronal oscillators with strictly postive phase restting curve, isochronous synchrony is an unstable attractor and arbitrarily weak noise can destroy entraiment and generate intemittent phase slips. Small inhomogeneityâmismatch in the intrinsic firing rate of the neuronsâ 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 itegrate-fire model, inhomogeneity can increase correlation of spike trains when the neurons are synaptically connected.
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