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Pavlov Pav·lov (pāv'lôf', -lŏv', päv'ləf), Ivan Petrovich. 1849-1936.
Russian physiologist known for his discovery of the conditioned response. He won a 1904 Nobel Prize for his research on the nature of digestion.
Russian physiologist who studied the digestive system of dogs, investigating the nervous control of salivation and the role of enzymes. His experiments showed that if a bell is rung whenever food is presented to a dog, the dog will eventually salivate when it hears the bell, even if no food is presented. This demonstration of what is known as a conditioned response prompted later scientific studies of human and animal behavior.