Figure 3.

Connectivity changes of the premotor and primary somatosensory cortex. t-value topographies of ciCOH for POST vs. PRE differences of intrinsic oscillatory activity in the α-band, low β-band, and high β-band are shown. Electrode clusters, displaying significant differences in the non-parametric statistical randomization test, are visualized by filled black circles. The black cross indicates the seed electrode position in the premotor (PM) and primary somatosensory (S1) cortex. Red color indicates increase and blue color decrease in functional connectivity (ciCOH) in the POST training as compared to PRE training condition. Note that there were no significant differences for high β-band for both electrodes overlying somatosensory and premotor regions, and no significant differences for low β-band for the electrode overlying premotor regions.