¬ Pavlov’s historical experiment started off with him just just measuring if and how much a dog would salivate during digestion. The dog would salivate quickly when it saw the food but after repeatedly doing the same test Pavlov noticed that the dog started to salivate even before the food was presented and that even just listening to his footsteps the dog would start to salivate. Pavlov wanted to find out why this was happening so he wanted to find out by “systematically varying the stimuli and watching the reaction” of the dog. He used bells, light and metronomes and they all elicited the response it didn’t matter what the stimuli was but the fact that it signaled that food was on the way. So using the classical elements of classical conditioning
