Thursday, February 20, 2014

"Conditioned Reflex"

Going to the Dogs

Ivan Pavlov is one of the most widely-recognized figures on mental conditioning, but he did so much more than that in his lifetime. Not only was he almost ordained as a priest, but he made major advances in circulatory medicine, physiology and the nervous system.
Click here to learn about Pavlov's personal history.


"Conditioned Reflex" Learning Theory


Pavlov is best known for his work with dogs, training them to react to various stimuli. This research was spawned from experiments with canine digestive systems, possibly based on the work of a scientist named Beaumont, who worked with a trapper that had a deformed stomach, and Beaumont was able to study the various parts of the digestive processes by removing food from the trapper’s stomach. This research on dogs’ digestive systems led Pavlov to notice their reactions to the presentation of food. While he did use a well-known bell, he also tested such techniques as electric shock, whistles, and even visual stimuli.
His experiments were based around a kind of proactive response that he called “conditioned reflex;” Pavlov would ring a bell and present food to a dog, who would then drool (as one might expect,) but then the dog began to equate the bell with food. Pavlov then would ring the bell without presenting food, and the dog would still drool. This discovery was the beginning of an entire field of study, and was continued by such luminaries as B. F. Skinner, who reversed Pavlov’s principle and conditioned his subjects by rewarding appropriate behavior.

Personal History

Going to the Dogs

Ivan Pavlov is one of the most widely-recognized figures on mental conditioning, but he did so much more than that in his lifetime. Not only was he almost ordained as a priest, but he made major advances in circulatory medicine, physiology and the nervous system.

Personal History

Ivan Pavlov was born in 1849, the son of a priest in the town of Ryazan in pre-Communist Russia. He learned to read at an early age, but a subsequent accident prevented him from going to school until he was 11. He always had a natural curiosity, what he called “an instinct for research,” and he put it to good use.
When he graduated from school he went into a seminary, but left for the University of Saint Petersburg before he could graduate. In Saint Petersburg he entered the Physics and Math Department. During his fourth year he presented work on the structure of the pancreas that gained him schoolwide fame.

Unsatisfied with his level of learning, he graduated from the Department of Physics and Math and then enrolled in the Academy of Medical Surgery and then the Veterinary Institute. Eventually he graduated, but not before gaining a fellowship at the Academy, where he was instrumental in mapping response patterns in the Human circulatory system.
Ivan Pavlov died in 1936, proceeding one of his four surviving children by only a year.