Biomechatronics is the interdisciplinary study of biology, mechanics, and electronics. Biomechatronics focuses on the interactivity of biological organs (including the brain) with electromechanical devices and systems. Universities and research centers worldwide have taken notice of biomechatronics in light of its potential for development of advanced medical devices and life-support systems. Primitive biomechatronic devices have existed for some time; the heart pacemaker and the defibrillator are examples. More exciting biometchatronic possibilities that scientists foresee in the near future include pancreas pacemakers for diabetics, mentally controlled electronic muscle stimulators for stroke and accident survivors, cameras that can be wired into the brain allowing blind people to see, and microphones that can be wired into the brain allowing deaf people to hear.