Anticipated and delayed synchronization: network strength quantification

ROMAN BARAVALLE; FERNANDO MONTANI

Buenos Aires

Conferencia; 27th International Conference on Statistical Physics, StatPhys 27; 2019

IUPAP

The phenomenon of synchronization between two or more areas of the brain coupled asymmetrically is a very relevant topic to understand the mechanisms and functions within the cerebral cortex. The anticipated synchronization (AS) refers to the situation in which the receiving system, called ?slave?, synchronizes with the future dynamics of the sender system, typically called ?master?. In contrast, the intuitive delayed synchronization (DS) represents exactly the opposite case, and more intuitive case [1,2,3]. In this work we investigate and compare the magnitude of the connection between the networks in the AS and DS within the context of causal information theory using a symbolic formalism of multiple temporal scales. Also this formalism allows us to determine specific dynamical features that are different in this two synchronization scenarios.   [1] ?A symbolic information approach to determine anticipated and delayed synchronization in neuronal circuit models?, Fernando Montani Osvaldo A. Rosso Fernanda S. Matias Steven L. Bressler Claudio R. Mirasso (2015). Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 373. http://doi.org/10.1098/rsta.2015.0110 [2] ?Anticipating chaotic synchronization.? Voss HU. (2000). Phys. Rev. E 61, 5115. doi:10.1103/PhysRevE.61.5115 [3] ?Modeling positive Granger causality and negative phase lag between cortical areas?, Matias FS, Gollo LL, Carelli PV, Bressler SL, Copelli M, Mirasso CR. (2014). Neuroimage 99, 411?418. doi:10.1016/j.neuroimage.2014.05.063