Stimulate One Hand to Improve Tactile Perception on the Other

* Inclusion Criteria: * Age: 30-80 years old * Patients with diagnosis of unilateral (both right and left) ischemic or hemorrhagic stroke * Stroke event dates at least 3 months before the date of inclusion to the study * Severe-to-mild sensory loss at the fingers of the hand contralateral to the stroke lesion (affected hand) * Capacity to provide written consent * Affiliation to a social security scheme * Non inclusion Criteria \* : * Sensory impairment attributable to diabetes history, peripheral vascular disease or neuropathy * Severe speech disorder, global aphasia and/or cognitive impairment * Multiple stroke events * Bilateral stroke event * History of neurological or psychiatric illness * Other experimental procedure is forbidden during the weeks where the study is performed * Pregnant, parturient and lactating women * Persons deprived of their liberty * Adult persons subject to a legal protection measure: guardianship, curatorship * Persons in psychiatric care * Congenital or acquired malformation/injury of the test fingers * Impossibility to maintain hand position necessary for the tests due to severe spasticity Exclusion Criteria: • Severe impairment of the sensibility of the index finger of the spared hand preventing the administration of the RSS