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Double inverse stochastic resonance with dynamic synapses

Phys Rev E. 2017 Jan;95(1-1):012404. doi: 10.1103/PhysRevE.95.012404. Epub 2017 Jan 11.

Abstract

We investigate the behavior of a model neuron that receives a biophysically realistic noisy postsynaptic current based on uncorrelated spiking activity from a large number of afferents. We show that, with static synapses, such noise can give rise to inverse stochastic resonance (ISR) as a function of the presynaptic firing rate. We compare this to the case with dynamic synapses that feature short-term synaptic plasticity and show that the interval of presynaptic firing rate over which ISR exists can be extended or diminished. We consider both short-term depression and facilitation. Interestingly, we find that a double inverse stochastic resonance (DISR), with two distinct wells centered at different presynaptic firing rates, can appear.

MeSH terms

  • Action Potentials
  • Animals
  • Models, Neurological*
  • Neuronal Plasticity / physiology
  • Neurons / physiology*
  • Stochastic Processes
  • Synapses / physiology*