Fig. 2: Correlations between myelination, GWFC, and ReHo across the cortex.
From: Functional contrast across the gray-white matter boundary
a A scatter plot showing the positive correlation (r(358) = 0.40, p = 2.7470e-15, 95% CI = [0.31, 0.48]) between GWFC and myelin content. b Spatial distribution of myelin content. c A scatter plot showing a weaker positive correlation (r(358) = 0.32, p = 2.9541e-10, 95% CI = [0.23, 0.41]) between ReHo and myelin content. d Spatial distribution of GWFC and corresponding anatomical diagrams. e Spatial distribution of ReHo and corresponding anatomical diagrams. Each point in the scatterplot represents a brain region, and the fitted line depicts the general relationship between the two measured metrics. Two-sided Pearson correlation was used to assess the association between variables. For the distribution maps, the color represents the metric value (blue = low, red = high). These diagrams in d, e are intended to conceptually illustrate how different orientations of functional connectivity, perpendicular for GWFC and tangential for ReHo, may reflect varying underlying anatomical and myelin characteristics. The top and bottom schematics, aligned with the color bars, correspond to regions with high and low GWFC or ReHo values, respectively. Some elements in d, e were created with Figdraw. GWFC gray-white matter functional connectivity; ReHo = regional homogeneity.
