Computer simulation study of the effects of amyotrophic lateral sclerosis on the d...
Full text | |
Author(s): |
Vinícius Lima Cordeiro
[1]
;
Rodrigo Felipe de Oliveira Pena
[2]
;
Cesar Augusto Celis Ceballos
;
Renan Oliveira Shimoura
[4]
;
Antonio Carlos Roque
[5]
Total Authors: 5
|
Affiliation: | [1] Universidade de São Paulo. Departamento de Física. Laboratório de Sistemas Neurais - Brasil
[2] Universidade de São Paulo. Departamento de Física. Laboratório de Sistemas Neurais - Brasil
[4] Universidade de São Paulo. Departamento de Física. Laboratório de Sistemas Neurais - Brasil
[5] Universidade de São Paulo. Departamento de Física. Laboratório de Sistemas Neurais - Brasil
Total Affiliations: 5
|
Document type: | Journal article |
Source: | Revista Brasileira de Ensino de Física; v. 41, n. 2 2018-11-29. |
Abstract | |
Abstract Neurons respond to external stimuli by emitting sequences of action potentials (spike trains). In this way, one can say that the spike train is the neuronal response to an input stimulus. Action potentials are “all-or-none” phenomena, which means that a spike train can be represented by a sequence of zeros and ones. In the context of information theory, one can then ask: how much information about a given stimulus the spike train conveys? Or rather, what aspects of the stimulus are encoded by the neuronal response? In this article, an introduction to information theory is presented which consists of historical aspects, fundamental concepts of the theory, and applications to neuroscience. The connection to neuroscience is made with the use of demonstrations and discussions of different methods of the theory of information. Examples are given through computer simulations of two neuron models, the Poisson neuron and the integrate-and-fire neuron, and a cellular automata network model. In the latter case, it is shown how one can use information theory measures to retrieve the connectivity matrix of a network. All codes used in the simulations were made publicly available at the GitHub platform and are accessible trough the url: github.com/ViniciusLima94/ticodigoneural. (AU) | |
FAPESP's process: | 13/07699-0 - Research, Innovation and Dissemination Center for Neuromathematics - NeuroMat |
Grantee: | Oswaldo Baffa Filho |
Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
FAPESP's process: | 17/05874-0 - Models of neural networks with stochastic neurons and different topologies: construction and analysis |
Grantee: | Vinícius Lima Cordeiro |
Support Opportunities: | Scholarships in Brazil - Master |
FAPESP's process: | 15/50122-0 - Dynamic phenomena in complex networks: basics and applications |
Grantee: | Elbert Einstein Nehrer Macau |
Support Opportunities: | Research Projects - Thematic Grants |
FAPESP's process: | 13/25667-8 - Mechanisms of propagation of epileptiform activity in a large-scale cortical model |
Grantee: | Rodrigo Felipe de Oliveira Pena |
Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
FAPESP's process: | 17/07688-9 - Computational study of hippocampal-cortical-thalamic interactions: simulating patterns of synaptic plasticity and oscillatory activity |
Grantee: | Renan Oliveira Shimoura |
Support Opportunities: | Scholarships in Brazil - Doctorate |