Fig. 7

Sequential forward selection of arm configurations. Achieved classification accuracies by adding arm configurations one-by-one during sequential forward selection for both classifications “RHO open” and “RHO closed”. Bold lines denote averaged accuracies across all participants, transparent areas indicate mean ± standard deviation and peaks are indicated by “\(\times\)” (*: \(p\le 0.05\). **: \(p\le 0.01\), n.s.: not significant)