Synchronization in a multilayer neuronal network: effect of time delays Zhen Wang, Fawaz E. Alsaadi and Viet-Thanh Pham Eur. Phys. J. Special Topics, 228 11 (2019) 2391-2403 Published online: 28 October 2019 DOI: 10.1140/epjst/e2019-900052-3