Table 1 The results of the performance at 1st session (S1) and last session (S10); TfFTtE (Time from first touch to the end), AToM (Average time of manipulation), IB (Inserted boxes), TNoT (Total number of tries), ATI (Average tremor indicator), ATIpS (Average tremor indicator per second) The Mac-Skilling non-parametric test was used to test the statistical differences (group x time, p < 0.05). The Cohen’s U3 coefficient demonstrated substantial differences in effect size between S1 and S10

103,98

11,97

104,19

12,54

0,4 [0,1-0,8]

101,87

24,56

84,60

29,54

0,2 [0,0-0,7]

0,669

3,79

1,72

3,36

1,36

0,1 [0,0-0,9]

2,40

0,50

2,49

0,51

0,6 [0,2-0,9]

0,009*

4,81

2,27

6,31

2,87

0,8 [0,2-1,0]

5,80

2,84

9,22

1,24

0,9 [0,6-1,0]

0,028*

9,58

3,54

12,19

3,44

0,5 [0,2-1,0]

12,36

4,64

13,42

2,91

0,7 [0,2-1,0]

0,181

17,77

8,23

15,52

5,45

0,3 [0,0-0,8]

24,42

8,41

23,72

8,53

0,4 [0,0-0,9]

0,002*

0,71

0,47

0,45

0,25

0,3 [0,0-0,8]

0,94

0,37

0,74

0,18

0,3 [0,0-0,8]

0,001*