Ivan Mikhaylovich Sechenov (Russian: Ива́н Миха́йлович Се́ченов; August 13 [O.S. August 1] 1829, Tyoply Stan (now Sechenovo) near Simbirsk, Russia – November 15 [O.S. November 2] 1905,Moscow), was a Russian physiologist, named by Ivan Pavlov as "The Father of Russian physiology". Sechenov authored the classic Reflexes of the Brain introducing electrophysiology and neurophysiology into laboratories and teaching of medicine.
Sechenov's major interest was neurophysiology (the structure of the brain). He showed that brain activity is linked to electric currents and was the first to introduce electrophysiology. Among his discoveries was the cerebral of spinal reflexes. He also maintained that chemical factors in the environment of the cell are of great importance.
Between 1856 and 1862 Sechenov studied and worked in Europe in laboratories of Johannes Peter Mueller, Emil du Bois-Reymond, Hermann von Helmholtz (Berlin), Felix Hoppe-Seyler (Leipzig), Carl Ludwig (Vienna) and Claude Bernard (Paris).