Effects of Motor Imagery and Action Observation Training on Pain Perception in Patients With Chronic Neck Pain

This study evaluates the influence of motor imagery or action observation training on pain perception in patients with chronic neck pain. Perception of pain will be measured by the pain pressure threshold. A group of patients will receive an action observation training of neck movements, another will receive a protocol of motor imagery of the same movements and the last group will be a placebo group, through the viewing of a documentary video.