Inclusion Criteria:  Older than 18 years. From 1 week to 6 months after stroke Ischemic or hemorrhagic stroke confirmation by computed tomography or magnetic resonance imaging. No previous impairments of the upper limb with the stroke affectation. Score above 20 on the Minimental State Examination test. Alertness and medical stability declared by the responsible neurologist and with ability to follow simple verbal commands Ability to move fingers, even partially.  Exclusion Criteria:  Acute traumatic or orthopedic involvement of the limb in concern. Unstable medical condition (life expectancy less than 3 months, uncontrolled hypertension, unstable angina, recent myocardial infarction, etc.). Any medical condition that may confound interpretation of results or put the patient at risk (e.g. amputated finger, psychiatric illness, etc.).