A preliminary functional brain study on amputees

The purpose of this study was to verify whether brain activation could be used to modulate the movements of an artificial limb. This approach was begun 20 years ago with the fitting of prostheses immediately following lower-limb amputations. We studied 9 unilateral amputees and 9 control participants using functional MRI, electroneuromyography, gait laboratory, and neuropsychological assessments. The results demonstrated that brain activation is analogous when participants in the control group are asked to mentally move a foot, compared with amputees who are asked to move a nonexistent foot. The brain has not been damaged and maintains its areas of command. This can be applied in rehabilitation.