Journal ArticleDOI
Effect of the heterogeneous neuron and information transmission delay on stochastic resonance of neuronal networks.
TLDR
It is shown that in the absence of delay, an intermediate noise level can optimally assist spike firings of collective neurons so as to achieve stochastic resonance on scale-free neuronal networks for small and intermediate α(h), which plays a heterogeneous role.Abstract:
We study the effect of heterogeneous neuron and information transmission delay on stochastic resonance of scale-free neuronal networks. For this purpose, we introduce the heterogeneity to the specified neuron with the highest degree. It is shown that in the absence of delay, an intermediate noise level can optimally assist spike firings of collective neurons so as to achieve stochastic resonance on scale-free neuronal networks for small and intermediate αh, which plays a heterogeneous role. Maxima of stochastic resonance measure are enhanced as αh increases, which implies that the heterogeneity can improve stochastic resonance. However, as αh is beyond a certain large value, no obvious stochastic resonance can be observed. If the information transmission delay is introduced to neuronal networks, stochastic resonance is dramatically affected. In particular, the tuned information transmission delay can induce multiple stochastic resonance, which can be manifested as well-expressed maximum in the measure for stochastic resonance, appearing every multiple of one half of the subthreshold stimulus period. Furthermore, we can observe that stochastic resonance at odd multiple of one half of the subthreshold stimulus period is subharmonic, as opposed to the case of even multiple of one half of the subthreshold stimulus period. More interestingly, multiple stochastic resonance can also be improved by the suitable heterogeneous neuron. Presented results can provide good insights into the understanding of the heterogeneous neuron and information transmission delay on realistic neuronal networks.read more
Citations
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Journal ArticleDOI
Stochastic resonance in hybrid scale-free neuronal networks
TL;DR: It is demonstrated that the average degree of neurons within the hybrid scale-free network significantly influences the optimal amount of noise for the occurrence of stochastic resonance, indicating that there also exists an optimal topology for the amplification of the response to the weak input signal.
Journal ArticleDOI
Autapse-induced multiple stochastic resonances in a modular neuronal network
X. L. Yang,YanHu Yu,Zhongkui Sun +2 more
TL;DR: The phenomenon of autaptic delay induced multiple stochastic resonances is further confirmed to be robust against the period of the external weak signal and the intramodule probability of subnetwork.
Journal ArticleDOI
Weak electric fields detectability in a noisy neural network
TL;DR: Results show that the neural network model has an optimal region for the detectability of weak electric field signal, and the model sensitivity is studied in detail.
Journal ArticleDOI
Effects of bounded noise and time delay on signal transmission in excitable neural networks
TL;DR: In this article , the influence of bounded noise and time delay on sub-threshold signal transmission in neuronal networks was studied and it was found that the signal transmission performance can be enhanced by moderate noise levels in neuronal systems.
Journal ArticleDOI
Stochastic multiresonance in coupled excitable FHN neurons.
TL;DR: It is revealed that the occurrence of stochastic multiresonance in the studied neuronal networks has close relationship with the period of subthreshold signal Te and the noise-induced mean period of the neuronal networks T0.
References
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What Is Stochastic Resonance? Definitions, Misconceptions, Debates, and Its Relevance to Biology
Mark D. McDonnell,Derek Abbott +1 more
TL;DR: This work challenges neuroscientists and biologists to embrace a very broad definition of stochastic resonance in terms of signal-processing “noise benefits”, and to devise experiments aimed at verifying that random variability can play a functional role in the brain, nervous system, or other areas of biology.
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Regularization of Synchronized Chaotic Bursts
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Synchronization transitions on small-world neuronal networks: Effects of information transmission delay and rewiring probability
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