Phase transitions in neuroscience

• Grant number: 19/12746-3
• Support Opportunities: Scholarships abroad - Research
• Start date: January 06, 2020
• End date: 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
• Institution abroad: Universidad de Granada (UGR), Spain

Abstract

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)

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; 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, FEB 20 2020. (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, DEC 23 2020. (19/12746-3, 13/07699-0, 18/20277-0)

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, JUL 13 2020. (13/07699-0, 19/12746-3)

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, DEC 2021. (19/12746-3, 18/09150-9, 18/20277-0, 16/24676-1, 13/07699-0, 15/50122-0, 16/03855-5)