Robust Synchronization of Delayed Chaotic FitzHugh-Nagumo Neurons under External Electrical Stimulation

Figure 1

Chaotic behavior of nonsynchronous coupled delayed FHN neurons with parametric variations under EES. (a) Phase portrait of 𝑥₁ and 𝑦₁; (b) phase portrait of 𝑥₂ and 𝑦₂; (c) synchronization error 𝑒₁=𝑥₁−𝑥₂ versus 𝑡; (d) synchronization error 𝑒₂=𝑦₁−𝑦₂ versus 𝑡.

(a)

(b)

(c)

(d)