Fig. 3
From: Assessing brain-muscle networks during motor imagery to detect covert command-following

Motor imagery of left-hand versus right-hand classification performance across subjects. Top. Mean area under the curve score for each participant (purple). Mean area under the curve for 500 classification accuracies after randomly permutating the trial labels (green). Bottom. Kernel density estimation for the null distribution of AUCs (green) and for the original data (purple) across subjects