Axon - Brain Train for Pain

Inclusion Criteria: * Head circumference range (560 - 595 mm) * Patients suffering from chronic pain (mean VNS \>4) for at least 6 months. * Chronic pain from any neurological or musculoskeletal cause, of which examples could be, post herpetic (or post-shingles) neuralgia, complex regional pain syndrome (CRPS), lower back pain, neck pain, major joint pain, spinal cord injury, phantom limb pain, brachial plexus injury related pain, traumatic peripheral nerve injury pain and post-cancer treatment pain * Stable medication and treatment over the intervention period * Participant or caregiver with minimum computer literacy able to effectively operate equipment after training, and the ability to position and remove headset effectively for training sessions Exclusion Criteria: * Patients who do not meet inclusion criteria (above) * Failing pre-screening suitability criteria for neurofeedback due to a neurological disorder, psychiatric disorder, epilepsy, regular use of benzodiazepines, previous neurofeedback training, serious head injury and other medication that has contraindications for neurofeedback training * Dreadlocks, braids, beads, or any other hairstyle or hair covering that cannot be removed for training * Known or suspected pregnancy * Diagnosis of (or currently undergoing treatment for) cancer, systemic infection, severe cardiovascular/respiratory comorbidity * Implanted electronic neuromodulation device * Implanted pacemaker or loop recorder * Any change in medication or treatment planned during the intervention period * Inability to use the equipment due to severity of pain