Figure 2.

Connectivity changes of the primary motor cortex. The plots show 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. 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 primary motor cortex (M1). Red color indicates increase and blue color decrease in functional connectivity (ciCOH) in the POST training as compared to PRE training condition.