Electrical brain stimulation was first used in the first half of this 19th century by pioneering researchers like Luigi Rolando (1773–1831) along with Pierre Flourens. Electrical brain stimulation is a variety of electrotherapy and technique used in research and scientific neurobiology to stimulate a neuron or even neural network inside brain through this direct or oblique excitation of their cell membrane through the use of an electric existing. It is for research or regarding therapeutical purposes.