Subgroup analyses
SECONDARY
To investigate the possible effect of the number/amount of training sessions received, comparisons among sub-groups of BCI-MI participants defined according to the number of completed training sessions (< 9 vs >  = 9) will be carried out on primary and secondary outcomes using the same statistical methodologies adopted in the primary and secondary analyses.Moreover, to assess the robustness of the effects of BCI-MI intervention, explorative subgroup analyses [