Fig. 8From: Virtual reality-based action observation facilitates the acquisition of body-powered prosthetic control skillsCorrelation between immersion and the relative change in the bowknot task (BKT) scores. The graph shows the correlation between immersion and the relative change in the BKT scores. The vertical axis of the graph shows the relative change from Pre. The horizontal axis of the graph shows the immersion score. There was a significant negative correlation between immersion score and the relative change in the BKT scores (Spearman’s rs = − 0.47, p = 0.007)Back to article page