Ivan Pavlov is an outstanding scientist, the pride of Russian science, the creator of the science of higher nervous activity. Everything that we now know about the brain is the result of the colossal works of academician I.P. Pavlov. He received the Nobel Prize and was elected an honorary member of one hundred and thirty academies and scientific societies. In his famous Lectures on the work of the cerebral hemispheres, he describes the main nervous processes, clarifies the concept of reflex, sheds light on such phenomena as dreams, hypnosis and sleep disorders. The scientific heritage of Ivan Pavlov determined the face of modern physiology and a number of related industries - biology and medicine, psychology and pedagogy.