Patients that have given their signed free consent.
Patients from 18 to 80 years, men or women, carriers of a chronic neuropathic pain (since more than a year ; EVN \> 2during week S0) drug resistant, unilateral, involving at least the superior member and/or hemi-face, whose analgesic treatment is stable from at least one month.
Patients whose drug resistance conduce their referent Algologist (specialist in pain medicine) to study the possibility to propose them alternative therapeutic solutions nonpharmacological and to start a pre-surgical examination.
You may not be if
History of drug addiction, migraine, epilepsy.
Presence of ferromagnetic intracranial equipment or a stimulating implanted (pace-maker, stimulation of basal ganglia, vagus nerve stimulator).
Introduction of a new analgesic treatment since at least a month.
Pregnant, parturient or breastfeeding women. The absence of effective contraception during all the study for patients of childbearing age.
Persons deprived of liberty by judicial or administrative decision, person under legal protection.
