Brain Plasticity and Emotion Recognition in Patients With Facial Palsy Before & After Surgical Rehabilitation: MEG Study

Inclusion Criteria: * No history of psychiatric illness * Severe facial palsy (V or VI grade on House and Brackman scale) * No evolutive neurologic pathology beside the lesion of the VIIth nerve * Signature of informed consent * Being a member of, or beneficiary of, a social security scheme Exclusion Criteria: * Evolutive neurological disease outside the lesion of the VIIth nerve * General pathology leading to neuropathy * Person unable to express his/her consent * Adult under a legal protection measure * Adult deprived of liberty by judicial or administrative decision. * Adult participating in another research protocol involving the human person or subjected to a period of exclusion from another research * Claustrophobia * Implants or metallic objects (including eyeglasses) that are susceptible to pertrubate the MEG signal * Treatment with known action on the central nervous system (Excessive recreational use of psychotropic drugs, ongoing benzodiazepine therapy) * For the patients who will undergo a complementary structural MRI for MEG source localisation, additional exclusion criteria are the contraindications to MRI (including: pacemaker or neurosensitive stimulator or implanted defibrillator, anevrism or vascular malformation of the brain, cochlear implants, ferromagnetic objects or prosthesis in the eyes or brain, mechanical heart valve prosthesis, permanent eye makeup; pregnant or nursing women)