Ivan Pavlov was a Russian scientist most famous for describing
the psychological phenomenon referred to as a "conditioned
response". Pavlov made a number of other very important
discoveries in the realm of physiology, particularly related to
digestion. Indeed, it was while studying the secretion of
digestive enzymes that he became interested in the integration
of the body and the brain. His first research project, under the
tutelage of Elie Cyon, involved investigation of pancreatic
nerves, and this work earned him gold medal honors at the
university. Pavlov continued his studies at the Military Medical
Academy between the years of 1875 and 1879. He finished his
dissertation and earned the degree of doctor of medicine in
1883. Pavlov gained the influence of prominent researchers such
as Ludwig, Heidenhain, and Bofkin during the next several years,
and was named Professor of Pharmacology at St. Petersburg
Institute of Experimental Medicine in 1895. Soon after this
honor he became Professor of Physiology, and h