Figure 3:

Panels A and B: box plots of median numbers of ICs (#ICs) with dipolarity values (A) above 85% (quasi-dipolar) and (B) 95% (near-dipolar). Significance of differences between conditions was determined using Kruskal-Wallis plus Tuckey post hoc tests. Panel C: Estimated probabilities of significant condition differences in the number of quasi-dipolar components (RV > 85%) for the following comparisons: (i) PCA-Only versus PCA₈₅ICA; (ii) PCA₈₅ICA versus PCA₉₅ICA; (iii) PCA₉₅ICA versus PCA₉₉ICA; (iv) PCA₉₉ICA versus ICA-Only. Each panel shows p-values for existence of significant differences between the number of quasi-dipolar components in the contrasted condition pair for each dipolarity threshold (x axis, RV > 80% to RV>99%). Dashed red lines show the dipolarity condition-difference significance threshold (red dashed line at p=0.05). Panel D: Numbers of dipolar ICs (y axis) available after PCA dimensionality reduction for two dipolarity thresholds (dipolarity > 85%, >95%) in decomposition conditions PCA₈₅ICA (black dots), PCA₉₅ICA (green dots), PCA₉₉ICA (blue dots), and ICA-only (red dots). A dashed blue line connects the dots for each subject. A red dashed line plots the #ICs (the upper bound to the #dipolar ICs).