Figure 5. .

Biomarker for tasks and subjects. (A) Support network of the 35 most informative MOU-EC links for the task identification, obtained using recursive feature elimination (RFE). The 10 black links are common to the easier discrimination between rest and movie, whereas the 29 red links are specific to the four tasks, and the gray link is specific to the two tasks. The ROI colors indicate anatomical grouping: yellow = occipital, green = parietal, cyan = temporal, gray = central, orange = frontal, and purple = cingulate. See also Table A.1 for the ROI labels. (B) Same as panel A for FC links. We obtain eight common black links, three gray links for the two tasks only, and 21 red links for the four tasks only. The links in dashed lines correspond to ROI that are not connected in SC. (C) Match between EC rankings for the two and four tasks (left plot), as well as between EC and FC rankings for existing EC links. The Pearson correlation between the matched rankings is indicated above. (D) Correspondence between p values for Mann-Whitney tests and RFE rankings for the 1,180 MOU-EC links. For the two tasks, we show two significance thresholds for multiple comparisons: the Benjamini-Hochberg correction (dashed line) and Bonferroni correction equal to −log₁₀(0.05/1180) (dashed-dotted line). For the four tasks, the maximum of the p values for the six pairwise comparisons is plotted, with the same Bonferroni threshold.