FIG. 4.

(A) Correlation contrast (β₁) matrices from Level-II models Base, GCOR, and GSReg for the two groups Ψ and Ψ_B. Each pixel in the matrix is colored to reflect the difference in Fisher z-transformed correlations between a voxel pair in the first group and the same pair in the second group (β₁). Contrasts that failed to reach significance at Bonferroni corrected p<0.01 were not colored. The scatter plot graph shows correlation difference obtained under Level-II GCOR (“×”s) and Level-II GSReg (“o”s) versus the difference from model Level-II Base. Here as in the remaining plots, differences from all voxel pairs are plotted and significant difference are highlighted with starker colors. Under Level-II GCOR significant differences are in red, while sub-threshold ones are in orange. Under Level-II GSReg significant differences are in black, while sub-threshold differences are in gray. The gray line marks x=y. (B) Distribution of GCOR values for groups Ψ, Ψ_B, and Ψ_BB. (C) Same as A, but for groups Ψ and Ψ_BB.