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- W1663501904 abstract "In this work we study the detection of weak stimuli by spiking neurons in the presence of certain level of noisy background neural activity. Our study has focused in the realistic assumption that the synapses in the network present activity-dependent processes, such as short-term synaptic depression and facilitation. Employing mean-field techniques as well as numerical simulations, we found that there are two possible noise levels which optimize signal transmission. This new finding is in contrast with the classical theory of stochastic resonance which is able to predict only one optimal level of noise. We found that the complex interplay between the nonlinear dynamics of the neuron threshold and the activity-dependent synaptic mechanisms is responsible for this new phenomenology. Our results are confirmed by employing a more realistic FitzHugh-Nagumo neuron model, which displays threshold variability, as well as by considering more realistic synaptic models. We support our findings with recent experimental data of stochastic resonance in the human tactile blink reflex." @default.
- W1663501904 created "2016-06-24" @default.
- W1663501904 creator A5025448167 @default.
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- W1663501904 date "2009-06-03" @default.
- W1663501904 modified "2023-09-27" @default.
- W1663501904 title "Emergence of resonances in neural systems: the interplay between threshold adaptation and short-term synaptic plasticity" @default.
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