Excitatory-inhibitory branching process: A parsimonious view of cortical asynchronous states, excitability, and criticality
Metadatos
Mostrar el registro completo del ítemEditorial
American Physical Society
Fecha
2022-11-14Referencia bibliográfica
Roberto Corral López, Víctor Buendía, and Miguel A. Muñoz Phys. Rev. Research 4, L042027 [https://doi.org/10.1103/PhysRevResearch.4.L042027]
Patrocinador
Alexander von Humboldt-Stiftung; Bundesministerium für Bildung und Forschung; FEDER; European Regional Development Fund A-FQM-175-UGR18, FPU19/03887, P20-00173 ERDF; Agencia Estatal de Investigación MICIN/AEI/10.13039/501100011033, PID2020-113681GB-I00Resumen
The branching process is the minimal model for propagation dynamics, avalanches, and criticality, broadly
used in neuroscience. A simple extension of it, adding inhibitory nodes, induces a much-richer phenomenology,
including an intermediate phase, between quiescence and saturation, that exhibits the key features of “asynchronous
states” in cortical networks. Remarkably, in the inhibition-dominated case, it exhibits an extremely
rich phase diagram that captures a wealth of nontrivial features of spontaneous brain activity, such as collective
excitability, hysteresis, tilted avalanche shapes, and partial synchronization, allowing us to rationalize striking
empirical findings within a common and parsimonious framework.