(A–D) Normalized beta power (A), total burst duration (B), average burst duration (C), and number of beta bursts per second (D) in the STN LFP were all significantly reduced in the ‘Training’ condition compared to the ‘No Training’ condition. (E–H) The same for EEG from ipsilateral motor cortex. (I and J) The phase synchrony index (I) and spectral coherence (J) between STN and ipsilateral motor cortex were significantly reduced in ‘Training’ condition compared with ‘No Training’ condition. The dots with crosses indicate the means and cross-trial SEMs for each tested hemisphere. The gray and dark-shaded dots indicate higher measurement in the ‘Training’ and ‘No Training’ conditions, respectively. The bar on the diagonal refers to the number of cases with higher measurement in each condition. The error bar plots on the right show the mean and SEM across all tested hemispheres in different conditions; *p < 0.05, **p < 0.01/4 in (A) and (C), **p < 0.01 in (J), ***p < 0.001/4; Beta indicates hemisphere-specific beta band.