We revisit the dynamics of a prototypical model of balanced activity in networks of spiking neurons. A detailed investigation of the thermodynamic limit for fixed density of connections (massive coupling) shows that, when inhibition prevails, the asymptotic regime is not asynchronous but rather characterized by a self-sustained irregular, macroscopic (collective) dynamics. So long as the connectivity is massive, this regime is found in many different setups: leaky as well as quadratic integrate-and-fire neurons; large and small coupling strength; and weak and strong external currents.
Ubiquity of collective irregular dynamics in balanced networks of spiking neurons
Politi A.;Torcini A.
2018
Abstract
We revisit the dynamics of a prototypical model of balanced activity in networks of spiking neurons. A detailed investigation of the thermodynamic limit for fixed density of connections (massive coupling) shows that, when inhibition prevails, the asymptotic regime is not asynchronous but rather characterized by a self-sustained irregular, macroscopic (collective) dynamics. So long as the connectivity is massive, this regime is found in many different setups: leaky as well as quadratic integrate-and-fire neurons; large and small coupling strength; and weak and strong external currents.| Campo DC | Valore | Lingua |
|---|---|---|
| dc.authority.ancejournal | CHAOS | en |
| dc.authority.orgunit | Istituto dei Sistemi Complessi - ISC | en |
| dc.authority.people | Ullner E. | en |
| dc.authority.people | Politi A. | en |
| dc.authority.people | Torcini A. | en |
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| dc.collection.name | 01.01 Articolo in rivista | * |
| dc.contributor.appartenenza | Istituto dei Sistemi Complessi - ISC | * |
| dc.contributor.appartenenza.mi | 1036 | * |
| dc.date.accessioned | 2024/02/20 22:31:39 | - |
| dc.date.available | 2024/02/20 22:31:39 | - |
| dc.date.issued | 2018 | - |
| dc.description.abstracteng | We revisit the dynamics of a prototypical model of balanced activity in networks of spiking neurons. A detailed investigation of the thermodynamic limit for fixed density of connections (massive coupling) shows that, when inhibition prevails, the asymptotic regime is not asynchronous but rather characterized by a self-sustained irregular, macroscopic (collective) dynamics. So long as the connectivity is massive, this regime is found in many different setups: leaky as well as quadratic integrate-and-fire neurons; large and small coupling strength; and weak and strong external currents. | - |
| dc.description.affiliations | Institute for Complex Systems and Mathematical Biology, Department of Physics (SUPA), Old Aberdeen, Aberdeen, AB24 3UE, United Kingdom; Max Planck Institut für Physik komplexer Systeme, Nöthnitzer Str. 38, Dresden, 01187, Germany; Laboratoire de Physique Théorique et Modélisation, Université de Cergy-Pontoise, CNRS, UMR 8089, Cergy-Pontoise cedex, 95302, France; Laboratoire de Physique Théorique et Modélisation, Université de Cergy-Pontoise, CNRS, UMR 8089, Cergy-Pontoise cedex, 95302, France; Aix Marseille Univ, INSERM, INMED, and INS, Inst Neurosci Syst, Marseille, 13000, France; Aix Marseille Univ, INSERM, INMED, and INS, Inst Neurosci Syst, Marseille, 13000, France; Aix Marseille Univ, INSERM, INMED, and INS, Inst Neurosci Syst, Marseille, 13000, France; Aix Marseille Univ, INSERM, INMED, and INS, Inst Neurosci Syst, Marseille, 13000, France; Istituto dei Sistemi Complessi, CNR - Consiglio Nazionale delle Ricerche, via Madonna del Piano 10, Sesto Fiorentino, I-50019, Italy; Istituto dei Sistemi Complessi, CNR - Consiglio Nazionale delle Ricerche, via Madonna del Piano 10, Sesto Fiorentino, I-50019, Italy | - |
| dc.description.allpeople | Ullner, E.; Politi, A.; Torcini, A. | - |
| dc.description.allpeopleoriginal | Ullner E.; Politi A.; Torcini A. | en |
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| dc.title | Ubiquity of collective irregular dynamics in balanced networks of spiking neurons | en |
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| isi.description.abstracteng | We revisit the dynamics of a prototypical model of balanced activity in networks of spiking neurons. A detailed investigation of the thermodynamic limit for fixed density of connections (massive coupling) shows that, when inhibition prevails, the asymptotic regime is not asynchronous but rather characterized by a self-sustained irregular, macroscopic (collective) dynamics. So long as the connectivity is massive, this regime is found in many different setups: leaky as well as quadratic integrate-and-fire neurons; large and small coupling strength; and weak and strong external currents. Published by AIP Publishing. | * |
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| scopus.description.abstracteng | We revisit the dynamics of a prototypical model of balanced activity in networks of spiking neurons. A detailed investigation of the thermodynamic limit for fixed density of connections (massive coupling) shows that, when inhibition prevails, the asymptotic regime is not asynchronous but rather characterized by a self-sustained irregular, macroscopic (collective) dynamics. So long as the connectivity is massive, this regime is found in many different setups: leaky as well as quadratic integrate-and-fire neurons; large and small coupling strength; and weak and strong external currents. | * |
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| scopus.title | Ubiquity of collective irregular dynamics in balanced networks of spiking neurons | * |
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| Appare nelle tipologie: | 01.01 Articolo in rivista | |
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