Berlin 2024 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 28: Networks: From Topology to Dynamics I (joint session SOE/DY)

DY 28.3: Talk

Wednesday, March 20, 2024, 15:30–15:45, TC 006

Interplay of synchronization and cortical input in models of brain networks — •Eckehard Schöll^1,2,3 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