Pavlov's Work in Physiology Shaped the Field of Psychology

Ivan Pavlov and Classical Conditioning

Ivan Petrovich Pavlov was a Russian physiologist who became famous for his work in the field of behavioral psychology. In fact, Pavlov has become iconic in popular culture thanks to classic “Pavlov’s dog” experiment. The term “Pavlovian” has even entered into the lexicon of the West and indicates any time a person has what could be called an automatic, trained response to something—like expecting a stimulus at the ringing of a bell. Pavlov helped to explain one of the most basic features of human behavior, which is its programmability. He explored what would be called the associative processes of the canine digestive system and in that study brought attention to the concept of classical conditioning. His work helped to launch the field of behavioral science. It impacted numerous other disciplines too, from psychology to medicine to education. Without Pavlov and his dog, the world might be a very different place.

Pavlov was born in 1849 in Russia. His father and grandfather were both Russian Orthodox priests, so Pavlov came from a very traditional and religious household (Todes, 2022). He himself was the oldest of eleven children. Initially, it seemed that he was destined to enter the church and follow in the footsteps of his father and grandfather. Yet, something happened to him durng his formative educational years: rather than be inspired by Orthodox fathers of the faith he learned about Charles Darwin and Ivan Sechenov and was instead inspired by the progressivist trend in the field of natural science (Cambiaghi & Sacchetti, 2015).

Thus, Pavlov's formal education began at Ryazan Ecclesiastical Seminary, but it did not remain there. He shifted away from theology and began learning more and more about science at the University of St. Petersburg. There he focused on physiology, which was the fiel of Sechenov (Cambiaghi & Sacchetti, 2015). He looked at the mechanics by which the world and all life within it seemed to operated. It was the mechanics of life that fascinated him more than the theological explanations of his forefathers. He wanted to be able to understand life at a mechanical level (Todes, 2022).

Pavlov's (1904) research on the physiology of digestion is what eventually won him the Nobel Prize in 1904. Over the course of his research on canine digestion, however, he noticed what would become called the phenomenon of 'classical conditioning. That is, he observed that his dog would salivate when it heard the dinner bell ring: the dog’s mind/body system associated the sound of the bell with food, and the sound triggered a physical response in the dog—it made the dog salivate in anticipation of being fed. The creation of saliva is the body’s natural response to eating, as it helps with digestion (that is why this was noticed by Pavlov in the first place, since he was studying digestion). But the more he thought about it, the more apparent it became to Pavlov that behavior could possibly be conditioned through associative learning.

In his later years, Pavlov continued researching. He died in 1936. However, his work guided the behavioral sciences in a big way. His discovery triggered a new era in psychological research and experimentation, opening the door for B. F. Skinner’s work and more. It even spread to the field of marketing, where the Edward Bernays, the nephew of another famous psychologist (Sigmund Freud) became the father of advertising by implementing psychological and behavioral insights like those discovered by Pavlov (Olasky, 1985).