Figure 1.

Nonparametric (Spearman’s) correlation coefficients between personality traits and the accuracy of classification of brain signals when imagining movements of the right (ARH, green columns) and left hand (ALH, red columns) in comparison to the rest. (A)—data of all participants (“pure” right-handers and latent left-handers together), (B)—data of “pure” right-handers (RHs) and latent left-handers (LHs) separately. Significant correlations are marked with an asterisk (*) (p < 0.05) or two asterisks (**) (for p < 0.01), p-value is indicated in a case of trend. Significant (p < 0.05) differences between subgroups with a high and low value of the factor according to Mann–Whitney test are marked with M-W.