A chemical in the brain typically associated with cognition, movement and reward-motivation behaviour, among others, may also play a role in promoting chronic pain, according to new research from researchers at The University of Texas, University of Arizona and the University of Alabama.  The chemical, dopamine, sets the stage for many important brain functions, but the mechanisms that cause it to contribute to chronic pain … Continue reading Researchers map dopamine based chronic-pain pathway in the spinal cord and brain.