Grasping Rehabilitation Using Motor Imagery With or With no Neurofeedback After Tetraplegia

Inclusion Criteria:

• Volunteer individuals with C6-C7 tetraplegia with complete finger flexor paralysisrestricting grasping capabilities to the tenodesis.
• Consent to participate to the study after receiving clear, loyal and appropriateinformation.
• Aged between 18 and 55 years.
• Time since spinal cord injury above 6 months
• Stabilized condition in particular sensori-motor deficit.
• Sitting position for more than 1 hour
• Able to imagine movement
• Health care beneficiary

Exclusion Criteria:

• Long-lasting autonomic disorders while sitting (orthostatic hypotension and/or bloodpressure instability) limiting sitting position to less than 1 hour.
• Upper limb pain for either mechanic or neuropathic reasons preventing all graspingmovement and/or the ability to imagine those movements.
• Restricted wrist and finger range of motion preventing the tenodesis grasp.
• Patient after surgical tendon transfer that improved grasping capabilities (e.g.active finger flexion).
• Ongoing participation in another research that aim to evaluate an intervention likelyto improve the neurological or functional recovery introducing an experimental bias.
• Specific contraindication to Magnetoencephalography with the presence of metallicfragments inside the body such as pace-maker, neurostimulator, cochlear implants,steel dental implant and osteosynthesis material only applicable to the participantsincluded in Lyon hospital center (n=15).