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pro vyhledávání: '"Pena, Rodrigo F. O."'
Autor:
Shimoura, Renan Oliveira, Pena, Rodrigo F. O., Lima, Vinicius, Kamiji, Nilton L., Girardi-Schappo, Mauricio, Roque, Antonio C.
Publikováno v:
Eur. Phys. J. Spec. Top. (2021)
The field of computational modeling of the brain is advancing so rapidly that now it is possible to model large scale networks representing different brain regions with a high level of biological detail in terms of numbers and synapses. For a theoret
Externí odkaz:
http://arxiv.org/abs/2106.03995
Autor:
Lima, Vinicius, Dellajustina, Fernanda Jaiara, Shimoura, Renan O., Girardi-Schappo, Mauricio, Kamiji, Nilton L., Pena, Rodrigo F. O., Roque, Antonio C.
Publikováno v:
Rev. Bras. Ensino F\'is. 42: e20200007 (2020)
Physicists are starting to work in areas where noisy signal analysis is required. In these fields, such as Economics, Neuroscience, and Physics, the notion of causality should be interpreted as a statistical measure. We introduce to the lay reader th
Externí odkaz:
http://arxiv.org/abs/2106.03990
Publikováno v:
Eur. Phys. J. Spec. Top. (2021)
The temporal dynamics of membrane voltage changes in neurons is controlled by ionic currents. These currents are characterized by two main properties: conductance and kinetics. The hyperpolarization-activated current ($I_{\rm h}$) strongly modulates
Externí odkaz:
http://arxiv.org/abs/2106.03902
Autor:
Lima, Vinicius, Pena, Rodrigo F. O., Shimoura, Renan O., Kamiji, Nilton L., Ceballos, Cesar C., Borges, Fernando S., Higa, Guilherme S. V., de Pasquale, Roberto, Roque, Antonio C.
Neurons in the nervous system are submitted to distinct sources of noise, such as ionic-channel and synaptic noise, which introduces variability in their responses to repeated presentations of identical stimuli. This motivates the use of stochastic m
Externí odkaz:
http://arxiv.org/abs/2106.03610
Publikováno v:
Brain Sciences 2020, 10, 228
In network models of spiking neurons, the joint impact of network structure and synaptic parameters on activity propagation is still an open problem. Here we use an information-theoretical approach to investigate activity propagation in spiking netwo
Externí odkaz:
http://arxiv.org/abs/1905.01181
Autor:
Pena, Rodrigo F. O., Lima, Vinicius, Shimoura, Renan O., Ceballos, Cesar C., Rotstein, Horacio G., Roque, Antonio C.
Publikováno v:
Chaos 29, 103135 (2019)
The conventional impedance profile of a neuron can identify the presence of resonance and other properties of the neuronal response to oscillatory inputs, such as nonlinear response amplifications, but it cannot distinguish other nonlinear properties
Externí odkaz:
http://arxiv.org/abs/1804.04748
Publikováno v:
Phys. Rev. E 97, 042408 (2018)
In a neuron with hyperpolarization activated current ($I_h$), the correct input frequency leads to an enhancement of the output response. This behavior is known as resonance and is well described by the neuronal impedance. In a simple neuron model we
Externí odkaz:
http://arxiv.org/abs/1712.00306
Dynamics of spontaneous activity in random networks with multiple neuron subtypes and synaptic noise
Publikováno v:
Journal of Computational Neuroscience (2018)
Spontaneous cortical population activity exhibits a multitude of oscillatory patterns, which often display synchrony during slow-wave sleep or under certain anesthetics and stay asynchronous during quiet wakefulness. The mechanisms behind these corti
Externí odkaz:
http://arxiv.org/abs/1709.09748
Publikováno v:
Brain Sciences (2076-3425); May2024, Vol. 14 Issue 5, p442, 17p
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