Inclusion Criteria- Ischemic or hemorrhagic stroke, diagnosed clinically and by imagery, more than one month after onset;
- Severe upper limb paresis with Upper-Extremity Fugl-Meyer Score < 19/60 .
Exclusion Criteria- Significant limitation in upper limb function predating the recent stroke, caused by former symptomatic stroke and/or an orthopedic/rheumatologic disease;
- Neuropsychologic or psychiatric impairment with significant interference with participation in therapy;
- Severe visual impairment.