Dresden 2020 – wissenschaftliches Programm

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SOE: Fachverband Physik sozio-ökonomischer Systeme

SOE 9: Partial Synchronization Patterns in Neuronal Networks I (Focus Session joint with DY / SOE / BP) (joint session SOE/DY)

SOE 9.3: Topical Talk

Mittwoch, 18. März 2020, 16:00–16:30, GÖR 226

Partial Synchronization Patterns in the Brain — •Eckehard Schöll — Institut für Theoretische Physik, Technische Universität Berlin

Partial synchronization patterns play an important role in the functioning of neuronal networks, both in pathological and in healthy states. They include chimera states, which consist of spatially coexisting domains of coherent (synchronized) and incoherent (desynchronized) dynamics. We show that partial synchronization scenarios are governed by a delicate interplay of local dynamics, network topology, and time delay. Our focus is in particular on applications of brain dynamics like unihemispheric sleep [1], epileptic seizure [2], and relay synchronization between distant areas of the brain.

[1] Ramlow, L., Sawicki, J., Zakharova, A., Hlinka, J., Claussen, J. C. and Schöll, E., Partial synchronization in empirical brain networks as a model for unihemispheric sleep, EPL 126, 50007 (2019), highlighted in phys.org https://phys.org/news/2019-07-unihemispheric-humans.html and Europhys. News 50 no.5-6 (2019).

[2] Chouzouris, T., Omelchenko, I., Zakharova, A., Hlinka, J., Jiruska, P. and Schöll, E., Chimera states in brain networks: empirical neural vs. modular fractal connectivity, Chaos 28, 045112 (2018).