Activity-dependent stochastic resonance in recurrent neuronal networks
نویسندگان
چکیده
منابع مشابه
Activity-dependent stochastic resonance in recurrent neuronal networks.
We use a biophysical model of a local neuronal circuit to study the implications of synaptic plasticity for the detection of weak sensory stimuli. Networks with fast plastic coupling show behavior consistent with stochastic resonance. The addition of an additional slow coupling that accounts for the asynchronous release of neurotransmitter results in qualitatively different properties of signal...
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Belén Sancristóbal, ∗ Beatriz Rebollo, Pol Boada, Maria V. Sanchez-Vives, 3, † and Jordi Garcia-Ojalvo † Departament of Experimental and Health Sciences, Universitat Pompeu Fabra, Barcelona Biomedical Research Park, 08003 Barcelona, Spain Institut de Investigacions Biomèdiques August Pi i Sunyer, 08036 Barcelona, Spain Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, ...
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We study the phenomenon of stochastic resonance in a system of coupled neurons that are globally excited by a weak periodic input signal. We make the realistic assumption that the chemical and electrical synapses interact in the same neuronal network, hence constituting a hybrid network. By considering a hybrid coupling scheme embedded in the scale-free topology, we show that the electrical syn...
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Computational tasks, such as object recognition and sound localization, rely on specific, highly organized neuronal structures in the brain. A representation of this kind of network organization is the neuronal map, where neighboring neurons are sensitive to external stimuli that possess some similarity.1, 2 To achieve this, the pairwise connections between neurons, called synapses, form a spec...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2008
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.77.060903