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Phase transitions in neuroscience

Grant number: 19/12746-3
Support Opportunities:Scholarships abroad - Research
Effective date (Start): January 06, 2020
Effective date (End): July 25, 2020
Field of knowledge:Interdisciplinary Subjects
Principal Investigator:Osame Kinouchi Filho
Grantee:Osame Kinouchi Filho
Host Investigator: Miguel Angel Muñoz
Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
Research place: Universidad de Granada (UGR), Spain  


The use of statistical physics ideas and tools to study neuronal networks models is standard by now. In this project, I propose to study the phase diagram of networks with excitatory and inhibitory stochastic integrate-and-fire neurons. We will use stability analysis of fixed points to determine the phase boundaries. Also, we will examine the effect of adaptation dynamics of neuronal gains and firing thresholds that produce self-organization toward the critical region (self-organized quasi-criticality or SOqC, proposed by Miguel Munõz group).In particular, we will study the effect of adaptation in the presence of a first order phase transition which produces these-called self-organized bistability (SOB) also proposed by Miguel Munõz group from Granada, Spain. (AU)

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
GIRARDI-SCHAPPO, MAURICIO; GALERA, EMILIO F.; CARVALHO, TAWAN T. A.; BROCHINI, LUDMILA; KAMIJI, NILTON L.; ROQUE, ANTONIO C.; KINOUCHI, OSAME. A unified theory of E/I synaptic balance, quasicritical neuronal avalanches and asynchronous irregular spiking. JOURNAL OF PHYSICS-COMPLEXITY, v. 2, n. 4, . (19/12746-3, 18/09150-9, 18/20277-0, 16/24676-1, 13/07699-0, 15/50122-0, 16/03855-5)
GALERA, EMILIO F.; KINOUCHI, OSAME. Physics of psychophysics: Large dynamic range in critical square lattices of spiking neurons. PHYSICAL REVIEW RESEARCH, v. 2, n. 3, . (13/07699-0, 19/12746-3)
GIRARDI-SCHAPPO, MAURICIO; BROCHINI, LUDMILA; COSTA, ARIADNE A.; CARVALHO, TAWAN T. A.; KINOUCHI, OSAME. Synaptic balance due to homeostatically self-organized quasicritical dynamics. PHYSICAL REVIEW RESEARCH, v. 2, n. 1, . (16/24676-1, 13/07699-0, 19/12746-3, 16/00430-3, 18/09150-9, 16/20945-8)
KINOUCHI, OSAME; PAZZINI, RENATA; COPELLI, MAURO. Mechanisms of Self-Organized Quasicriticality in Neuronal Network Models. FRONTIERS IN PHYSICS, v. 8, . (19/12746-3, 13/07699-0, 18/20277-0)

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