Fig. 6
Interactions among the SSI parameters in 64 (top row) and 128 channel data (bottom row). Three-way interactions of the three SSI parameters were depicted for 64 (top row) and 128 channel (bottom row) data. Significant three-way interactions were observed in both 64 and 128 channel data, in which effect size of a parameter depended on the levels of other two parameters. For example, m = 3 had generally lower dPLV than m = 4. But when n = 7 and λ = 1e-5 were used for SSI, SSI-induced dPLV with m = 3 had larger dPLV than those of m = 4 in some sets of n and λ (i.e., n = 7 and λ = 1e-8 or with n = 50 and λ = 1e-8). The pattern of three-way interaction was somewhat different between 64 and 128 channel data as suggested by the significant four-way interaction among m, n, λ, and Ne