surrogate values

[guoyongjian111]

Hello, I would like to know whether the resting state EEG needs to be surrogate, and the range of PAC calculated by several methods in this example is not consistent, that is, the color bar on the right side of each subplot, and the analysis of the two groups The difference of PAC on a certain electrode of a person, how to do a cluster-based permutation test, thank you very much