Skip to main content
. 2015 Nov 4;35(44):14708–14716. doi: 10.1523/JNEUROSCI.1971-15.2015

Figure 2.

Figure 2.

fMRI evidence of distinct regions involved in voluntary contraction of right FHL and anal sphincter (pelvic) synergy. fMRI data were collected while participants performed three separate runs of separate repeated voluntary contraction of pelvic floor muscles (PFM; Run 1), right FHL (Run 2), and right FDI (Run 3). A, Contrast of voluntary FHL activation greater than voluntary FDI activation (toe > finger) produced significant brain activation in medial motor cortex (Z > 2.3, p < 0.05, cluster corrected). B, Contrast of voluntary PFM activation greater than voluntary FDI activation (pelvic > finger) also produced significant activation in the medial motor cortex, which overlapped with the anterior portion of the significant activation region for toe > finger (Z > 2.3, p < 0.05, cluster corrected). C, Posterior region of medial motor cortex exhibited significant brain activation, for voluntary FHL activation greater than anal sphincter (toe > pelvic) (Z > 2.3, p < 0.05, cluster corrected). D, Anterior region of motor cortex exhibited significant brain activation, for both anal sphincter activation and FHL activation compared with FDI activation (toe and pelvic > finger, conjunction of images in A, B).