Tricritical behavior in a neural model with excitatory and inhibitory units

Autor: Almeira, Joaquin, Grigera, Tomas S., Chialvo, Dante R., Cannas, Sergio A.
Rok vydání: 2022
Předmět:
Zdroj: Physical Review E 106, 054140 (2022)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevE.106.054140
Popis: While the support for the relevance of critical dynamics to brain function is increasing, there is much less agreement on the exact nature of the advocated critical point. Thus, a considerable number of theoretical efforts are currently concentrated on which mechanisms and what type/s of transition can be exhibited by neuronal networks models. In that direction, the present work describes the effect of incorporating a fraction of inhibitory neurons on the collective dynamics. As we show, this results in the appearence of a tricritical point for highly connected networks and non-zero fraction of inhibitory neurons. We discuss the relation of the present results with relevant experimental evidence.
Comment: 7 pages, 7 figures
Databáze: arXiv