Patients' global Information Transfer Rate values (ITR), their responses to the NASA-TLX questionnaire, associated Raw TLX (RTLX) values, satisfaction and quality of life values for each BCI.

The RTLX is the mean of the values given by the patients to each of the 6 subscales of the NASA-TLX questionnaire (all values ranging from 0 to 100): mental demand (MD), physical demand (PD), temporal demand (TD), own performance (OP), effort (EF) and frustration (FR). SA denotes the satisfaction index (ranging from 0 to 100) and QoL the quality of life index (ranging from −5 to +5).