317 citations
- Cornell UniversityUS4 papers
- Universidade Federal de AlagoasBR3 papers
- Universidade Federal Rural de PernambucoBR3 papers
- Instituto Nacional de Matemática Pura e AplicadaBR2 papers
- KU LeuvenBE2 papers
- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT2 papers
- Universidade de BrasíliaBR2 papers
- Universidade de São PauloBR2 papers
- Universidade Federal de SergipeBR2 papers
- Universidade Federal do ParanáBR2 papers
- Binghamton UniversityUS1 paper
- Brazilian Naval SchoolBR1 paper
6 papers · 1 filter
Deterministic excitable media under Poisson drive: power law responses, spiral waves and dynamic range
Tiago L. Ribeiro, Mauro Copelli
When each site of a spatially extended excitable medium is independently driven by a Poisson stimulus with rate h, the interplay between creation and annihilation of excitable wave…
Dynamic range of hypercubic stochastic excitable media
Vladimir R. V. Assis, Mauro Copelli
We study the response properties of d-dimensional hypercubic excitable networks to a stochastic stimulus. Each site, modelled either by a three-state stochastic susceptible-infecte…
Excitable Scale Free Networks
Mauro Copelli, Paulo R. A. Campos
When a simple excitable system is continuously stimulated by a Poissonian external source, the response function (mean activity versus stimulus rate) generally shows a linear satur…
Physics of Psychophysics: it is critical to sense
Mauro Copelli
It has been known for about a century that psychophysical response curves (perception of a given physical stimulus vs. stimulus intensity) have a large dynamic range: many decades…
Scaling law for the transient behavior of type-II neuron models
Miguel Angel Durán Roa, Mauro Copelli, Osame Kinouchi +1
We study the transient regime of type-II biophysical neuron models and determine the scaling behavior of relaxation times near but below the repetitive firing critical current,…
Stability diagrams for bursting neurons modeled by three-variable maps
M. Copelli, M. H. R. Tragtenberg, O. Kinouchi
We study a simple map as a minimal model of excitable cells. The map has two fast variables which mimic the behavior of class I neurons, undergoing a sub-critical Hopf bifurcation.…