Figure 2
(A) Time spent for one cycle in the ball-rotation task across measurement days (day 1 vs. day 8: p = 5.8 × 10–4, d = 1.16; day 8 vs. day 15: p = 0.002, d = 0.84). (B) Time spent for one cycle in the ball-rotation task on day 1. Significant improvement was observed in only one block practice (block 1 vs. block 2: p = 0.0017, d = 0.67). (C) Time spent for one cycle in the ball-rotation task on day 29. Significant improvement was not observed (p > 0.0125). (D) Difference in digit coordination pattern between the ball-rotation and the reproduction tasks across measurement days. The difference significantly decreased from day 1 to day 8 (p = 0.009, d = 0.52). (E) Difference in digit coordination pattern between the ball-rotation and the reproduction tasks on day 1. The difference did not change within day 1 (p > 0.0125). (F) Difference in digit coordination pattern between the ball-rotation and the reproduction tasks on day 29. The difference did not change within day 29 (p > 0.0125). (G) Time spent for one cycle in the reproduction task across measurement days (day 1 vs. day 8: p = 5.5 × 10–4, d = 1.47). (H) Time spent for one cycle of the reproduction task on day 1. Significant improvement was observed within day (block 1 vs. block 5: p = 0.0016, d = 1.32). (I) Time spent for one cycle in the reproduction task on day 29. Significant improvement was not observed (p > 0.0125). Error bars indicate 1 standard deviation.
