Randomization
stroke
STROKE
Participants are assigned to either the experimental group (BCI-MI) or the control group (Control-MI) in a 1:1 ratio through a randomized allocation process. This randomization process has been stratified by the side of the stroke lesion (left or right hemisphere) and the baseline score of UE-FMA/60, with 60 as the maximum score (< 19, severe; from 20 to 47, moderate) [To carry out the randomization, a list has been generated using permuted blocks of varying sizes through the Ralloc procedure of the Statistical software STATA (When a patient becomes eligible for randomization, the clinician in charge submits a randomization form containing the relevant stratification data and the date of the request. Then, the clinician responsible for participant randomization at Fondazione Santa Lucia IRCCS assigns to the patient the envelope with the number corresponding to the progressive order of randomization of the patient in his/her stratum.