Fig. 5
Comparison between resting-state fMRI and LFP connectivities. a Schematic diagram of correlation and coherences computed in the recordings of the spinal cord. b, c Group averaged within and across segments dorsal to dorsal (D–D) as well as dorsal to intermediate GM (D–IGM) connectivity was computed. Group boxplots of connectivity measures are displayed as Pearson’s correlation for fMRI and averaged coherences for LFP. Each boxplot contains fMRI observations from 12 monkeys (including those that underwent electrophysiology) across 15 functional studies, and electrophysiology observations from four monkeys in panels b and c, respectively. Ipsilateral dorsal-to-intermediate GM from the left and right hemi-cord was concatenated. The median and mean are represented as horizontal lines and diamonds, respectively, in each boxplot. Scatter circles on each boxplot represent individual observations. Using mean connectivity values from the three ROI pairs from both modalities (b, c), Pearson’s correlation value was computed to be 0.9982. *p < 0.05, **p < 0.0005, and ***p < 0.00005 Bonferroni–Holm corrected two-sided Mann–Whitney test
