Fig. 4:

Association between measured Neck Disability Index (NDI) and estimated NDI using (A) a general linear model (GLM) consisting of patient age and functional connectivity between the left supplementary motor area (SMA) and left precentral gyrus (PreCG), left SMA-to-right PreCG, and right SMA-to-right PreCG (R²=0.5364, P<0.0001); and (B) a second GLM consisting of patient age, neurological status measured with mJOA, and functional connectivity between left SMA-to-left PreCG, left SMA-to-right PreCG, and right SMA-to-right PreCG (R²=0.6357, P<0.0001).