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IPM
30
YEARS OLD

“School of Cognitive Sciences”

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Paper   IPM / Cognitive Sciences / 14044
School of Cognitive Sciences
  Title:   Stabilizing synchrony by inhomogeneity
  Author(s): 
1.  E. Bolhasani
2.  A.R. Valizadeh
  Status:   Published
  Journal: Scientific Reports
  Year:  2015
  Pages:   1-7
  Supported by:  IPM
  Abstract:
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 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 itegrate-fire model, inhomogeneity can increase correlation of spike trains when the neurons are synaptically connected.

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