Berlin 2024 – wissenschaftliches Programm
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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 17: Networks: From Topology to Dynamics (joint session SOE/DY)
SOE 17.3: Vortrag
Mittwoch, 20. März 2024, 15:30–15:45, TC 006
Interplay of synchronization and cortical input in models of brain networks — •Eckehard Schöll1,2,3 and Jakub Sawicki2 — 1Technische Universität Berlin — 2Potsdam Institute for Climate Impact Research (PIK) — 3Bernstein Center for Computational Neuroscience (BCCN) Berlin
It is well known that synchronization patterns and coherence have a major role in the functioning of brain networks, both in pathological and in healthy states. In particular, in the perception of sound, one can observe an increase in coherence between the global dynamics in the network and the auditory input. In this work, we show that synchronization scenarios are determined by a fine interplay between network topology, the location of the input, and frequencies of these cortical input signals [1]. To this end, we analyze the influence of an external stimulation in a network of FitzHugh-Nagumo oscillators with empirically measured structural connectivity, and discuss different areas of cortical stimulation, including the auditory cortex. [1] J. Sawicki and E. Schöll: Europhys. Lett. (2024), invited Perspective.
Keywords: synchronization; coupled oscillators; neuronal network dynamics; brain dynamics; auditory cortex