Fig. 1

The influence on synchronism in parameter set \(\tau -\alpha\): (a) \(\omega =2\), \(\gamma =1.5\), \(\lambda =0.1\), \(\sigma =0.1\), \(\varepsilon =1\); (b) \(\omega =2\), \(\gamma =1.5\), \(\lambda =0.5\), \(\sigma =0.3\), \(\varepsilon =1\).