Twenty patients enrolled at the "Institut Royal de l'Accueil du Handicap Moteur" (IRAHM) (1200 Brussels) will be included according to the following criteria: CP, whose location is unilateral (hemiplegia) or bilateral (diplegia, quadriplegia), with a MACS (Manual Ability Classification System) score > 1 (moderate to severe motor impairments) (13). The exclusion criteria are the following: injection in the upper member of botulinum toxin within 6 months or intrathecal baclofen used for the upper limb, an unstable clinical condition contraindicating the upper limb rehabilitation treatments, cognitive disorders preventing the understanding of the instructions or other neurological or orthopedic pathology affecting the upper limb.