منابع مشابه
Stochastic models of neuronal dynamics.
Cortical activity is the product of interactions among neuronal populations. Macroscopic electrophysiological phenomena are generated by these interactions. In principle, the mechanisms of these interactions afford constraints on biologically plausible models of electrophysiological responses. In other words, the macroscopic features of cortical activity can be modelled in terms of the microsco...
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Special iSSue i Modeling of brain processes has emerged as a promising research topic, which can help in the understanding of the human cognition. Investigations in this field have delivered successful implementations of learning and memory along with lines inspired by neural architectures. These findings have promoted optimism that a sufficiently complex artificial neural network would reprodu...
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Stochastic models of some aspects of the electrical activity in the nervous system at the cellular level are developed. In particular, models of the subthreshold behavior of the membrane potential of neurons ar~ consid~r~d alon& ~ith the problem of parameter estimation of physiologically meaningful parameters of the developed models. Both ordinary and partial stochastic differential equation mo...
متن کاملGlobal dynamics of a stochastic neuronal oscillator.
Nonlinear oscillators have been used to model neurons that fire periodically in the absence of input. These oscillators, which are called neuronal oscillators, share some common response structures with other biological oscillations such as cardiac cells. In this study, we analyze the dependence of the global dynamics of an impulse-driven stochastic neuronal oscillator on the relaxation rate to...
متن کاملStochastic resonance in models of neuronal ensembles
Two recently suggested mechanisms for the neuronal encoding of sensory information involving the effect of stochastic resonance with aperiodic time-varying inputs are considered. It is shown, using theoretical arguments and numerical simulations, that the nonmonotonic behavior with increasing noise of the correlation measures used for the so-called aperiodic stochastic resonance ~ASR! scenario ...
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ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society B: Biological Sciences
سال: 2005
ISSN: 0962-8436,1471-2970
DOI: 10.1098/rstb.2005.1648