Comparison of Jaccard similarity coefficients within right-handHspatial maps (e.g., right thumb vs. right index) to similarity between right hand and other effectorsspatial maps (e.g., right thumb vs. left thumb). Boxplots represent 25th–75thpercentile, the central band represents the median, and notches represent 95% CIs. Red cross denotes outliers. Hereafter, star signs represent significant respective differences.