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.
In this role he also functioned as the head of the Physiology department. Whilst Ivan Pavlov was involved with physiological researches with dogs for several years it was only in or or around 1889 that his famous dog research experiments with reflex conditioning or classical conditioning were begun.
Ivan Pavlov was known for his contribution of classical conditioning in the field of psychology. He first started by studying the digestive patterns of his dogs. He build a de â¦ vice that would measure the amount of saliva his dogs would secrete. Pavlov noticed that they would salivate every time when food was brought upon them.