1 ene 1903 año - Pavlov, using a bell, trains a dog to salivate at the bell's sound.
Descripción:
When Pavlov discovered that any object or event in which the dogs learned to associate with food would trigger the same response, he realized that he had made an important discovery. He then devoted the rest of his career to studying this.Añadido al timeline:
fecha:
1 ene 1903 año
Ahora mismo
~ 121 years ago
