Transcutaneous Auricular Vagus Nerve Stimulation in Spinal Cord Injury

Inclusion Criteria: * A diagnosis of traumatic complete/incomplete apar/teraplgia * At least 12 months post-traumatic SCI * Patient included in rehabilitation program * After laparoscopic implantation of neurosprothesis to the pelvic nerves (LION procedure) * Mini-mental State examination score\>24 * Stable medication * Patient who voluntarily accept the test and sign an informed consent form Exclusion Criteria: * There is a clear history of cerebrovascular stroke, and there are clear symptoms or signs of neurological deficit at the time of onset, and there are corresponding responsible lesions left on neuroimaging * Patients with significant visual impairment or coexisting local or systemic diseases (eg osteoarthritis, or neuro,ogical conditions) likely to affect gait are excluded from the study * Pathologies of the articulation and ligaments of the LE that make standing/walking anatomically impossible * Patients who underwent deep brain stimulation surgery or those with an implanted cardiac pacemaker are excluded * Those with history of alcoholism, or drug addiction, or neurological diseases that can cause cognitive impairment, such as brain injury, epilepsy, encephalitis, normal intracranial pressure hydrocephalus * Suffering from systemic diseases that may lead to cognitive impairment (such as liver and kidney insufficiency, endocrine diseases, vitamin deficiency) * Suffering from cardiac conductive dysfunctions or sleep apnea syndrome * Participating in other drug clinical trials * There are contraindications to head MRI * Those who are deemed unsuitable to participate the trial by the investigator