Figure 1

BOLD signal in swallowing tasks in general linear model and independent component analyses. (A) In GLM analyses, significant BOLD signals were seen in both the lateral precentral gyri, postcentral gyri, anterior insular cortices, supramarginal gyri, pre-SMA, thalami, and visual cortices. (B) IC 17 showed the strongest positive correlation with BOLD signal (r = 0.64, p < 0.001) in the swallowing task in both the lateral precentral gyri, postcentral gyri, anterior insular cortices, supramarginal gyri, pre-SMA, and anterior cingulate gyri. GLM, general linear model; BOLD, blood oxygen level-dependent; SMA, supplementary motor area; IC, independent component; FWE, family-wise error.