Figure 2
From: Leveraging the effector independent nature of motor imagery when it is paired with physical practice

Change in task-related performance outcomes. Mean radial (top) and bivariate variable (bottom) error are shown across groups for each testing session. Individual participant means are overlaid, with error bars denoting 95% confidence intervals (see Table 1 for mean values and standard deviations). Effect sizes characterising overall improvements in performance (day 10 minus day 1; Cohen’s d) are shown for each group. While inferior to improvements achieved by physical practice alone (PP-PP), greater improvements in performance were observed when motor imagery was applied prior to physical practice (MIP-PP) compared to after physical practice (PP-MIP).