The codes printed on your driving licence tell you what conditions you must meet to drive.he codes printed on your driving licence tell you what conditions you must meet to drive.
Ivan Pavlov was a Russian physiologist whose research on the physiology of digestion led to the development of the first experimental model of learning, Classical Conditioning. Most of his research was gathered studying salivating dogs.
Pavlov then spent the rest of his time studying classical conditioning. He called the food the unconditioned stimulus (US) because it was unlearned and it was the main reason why the dogs salivated. Pavlov began pairing cues before the presentation of the food which he called them the conditioned stimulus (CS).