“…So there are two timescales in the competitive neural networks, one corresponding to the fast change of the state and the other to the slow change of the synapse by external stimuli. Meyer-Bäse et al (1996;Meyer-Bäse, Botella, & Rybarska-Rusinek, 2013;Meyer-Bäse, Pilyugin, & Chen, 2003;Meyer-Bäse, Pilyugin, Wismler, & Foo, 2004) studied the stability of competitive neural networks with different timescales that were not delayed. However, time delays exist in real neural networks and always influence the information processing of neurons for various reasons; they may, for example, cause periodic oscillations, bifurcation, or chaotic attractors.…”