Chronic pain can be objectively measured using brain signals

Using a brain implant that can record neural signals over many months, my research team and I have discovered objective biomarkers of chronic pain severity in four patients with chronic pain as they went about their daily lives.
Pain is one of the most important and basic subjective experiences a person can have. While there is plenty of evidence that perception of pain takes place in the brain, there is also a major knowledge gap regarding where and how pain signals are processed in the brain. Even though pain is universal, there has not been a way to objectively measure its intensity.
Chronic pain can be objectively measured using brain signals – new research