Our nervous system works like electrical circuit. All our muscle movement and activities have been controlled by brain when it is electrically stimulated. In normal human body brain gets stimulated by its own physiological mechanism. What happens if we stimulate the brain from outside artificially by electrical energy? Can this artificial electrical stimulation be used as a treatment for some nerve damage in the brain?
Yes, it can be. It is called brain pacemaker. The above picture is of brain pacemaker. Brain pacemaker is a device which consists of a battery, extension wire and electrode, by which specific nerve cell of brain can be electrically stimulated to modify its activity and to get clinical benefit of the patients suffering from Parkinsonism, dystonia etc.(1) The concept of electrical stimulation of brain came when Giovanni Aldini (1762–1834), professor of Physics at the…
