Ivan Petrovich Pavlov
(1849-1936) Russian physiologist.
His study of conditioned reflexes in dogs influenced behaviourism. He also made important contributions to the study of digestion: Nobel prize for physiology or medicine 1904.
[Collins English Dictionary]
[Mentioned by __Lou Collins.
[[Mentioned by Ping Wu in Last Order, volume 3, Angel Eternal, page 67]
The original and most famous example of classical conditioning involved the salivary conditioning of Pavlov’s dogs. During his research on the physiology of digestion in dogs, Pavlov noticed that, rather than simply salivating in the presence of meat powder (an innate response to food that he called the unconditioned response), the dogs began to salivate in the presence of the lab technician who normally fed them. Pavlov called these psychic secretions. From this observation he predicted that, if a particular stimulus in the dog’s surroundings were present when the dog was presented with meat powder, then this stimulus would become associated with food and cause salivation on its own. In his initial experiment, Pavlov used bells to call the dogs to their food and, after a few repetitions, the dogs started to salivate in response to the bell. Thus, a neutral stimulus (bell) became a conditioned stimulus (CS) as a result of consistent pairing with the unconditioned stimulus (US - meat powder in this example). Pavlov referred to this learned relationship as a conditional reflex (now called Conditioned Response).