Spike activity and coherence resonance in networks of excitable FitzHugh–Nagumo neurons: effects of coupling, noise, and periodic signalAndrei Bukh, Nataliya Nikishina, Aleksey Ryabov, Elena Rybalova, Vladimir Semenov and Tatyana VadivasovaEur. Phys. J. Spec. Top., 234 6 (2025) 1107-1123DOI: https://doi.org/10.1140/epjs/s11734-025-01668-y