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Ivan Petrovich Pavlov |
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| Russian psychologist Ivan Petrovich Pavlov’s name has become synonymous with the research he conducted on reflex behavior in animals. Pavlov demonstrated in experiments that dogs that heard a bell ring at feedings became conditioned to salivate at the sound of the bell. Pavlov, who also studied the nervous system, heart, and digestive system, is shown here, third from left, at work in his lab. | ||||||
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| Culver Pictures | ||||||
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| Pavlov, Ivan Petrovich | ||||||
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