Chimera States and Seizures in a Mouse Neuronal Model

Autor: J. Matthew Mahoney, Henry M. Mitchell, Christopher M. Danforth, Peter Sheridan Dodds
Rok vydání: 2020
Předmět:
Zdroj: International Journal of Bifurcation and Chaos. 30:2050256
ISSN: 1793-6551
0218-1274
DOI: 10.1142/s0218127420502569
Popis: Chimera states---the coexistence of synchrony and asynchrony in a nonlocally-coupled network of identical oscillators---are often used as a model framework for epileptic seizures. Here, we explore the dynamics of chimera states in a network of modified Hindmarsh-Rose neurons, configured to reflect the graph of the mesoscale mouse connectome. Our model produces superficially epileptiform activity converging on persistent chimera states in a large region of a two-parameter space governing connections (a) between subcortices within a cortex and (b) between cortices. Our findings contribute to a growing body of literature suggesting mathematical models can qualitatively reproduce epileptic seizure dynamics.
Comment: 16 pages, 17 figures
Databáze: OpenAIRE