Ivan Pavlov was a psycholgist and Nobel Laureate. He is most well known for his experiments training dogs to salivate when they heard a bell based on food being presented previously when the bell rang. This began the field of behavoural psychology.
Used on Chap. 16: page 379
Also known as pavlov
Links:
nobelprize.org: The Nobel Prize in Physiology or Medicine 1904: Ivan Pavlov
Encyclopedia Britanica: Ivan Pavlov - Russian physiologist
Wikipedia: Ivan Pavlov