The dominant frequency and phase coherence of the seven periods in the simulation data.

‘U’ indicates the uniform distribution of phases (0–), and ‘N’ indicates the normal distribution of mean of and standard deviation of . U→N denotes the linear transition from the uniform distribution to the normal distribution, and vice versa for N→U. ‘↔’ denotes a maintained value. ‘↑’ denotes an increased value. ‘⇑’ denotes a linearly increasing value. ‘⇓’ is vice versa.