Fig. 7: Relationship between GWBPR, GWFC, and long-range FC.
From: Functional contrast across the gray-white matter boundary

a–c The cortical distributions of GWFC, GWBPR, and the long-range FC are shown across the brain. The color represents the metric value (blue = low, red = high). d A negative correlation (r(358) = −0.68, p = 1.2889e-45, 95% CI = [−0.73, −0.61]) is observed between GWBPR and GWFC. e A negative correlation (r(358) = −0.73, p = 4.3120e-56, CI = [−0.78, −0.68]) is found between the GWBPR and long-range FC. 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. GWFC gray-white matter functional connectivity; GWBPR gray-white BOLD power ratio; long-range FC long-range functional connectivity.