who discovered the principle of classical conditioning?
This can be contrasted with habituation, which involves disassociating a stimulus with a particular event and a decrease in response behavior (Gleitman, 1992). Perhaps the best example to demonstrate the principles involved in classical conditioning learning are the experiments carried out by Ivan Pavlov. Pavlov noticed that when he presented his dogs with food, this unconditioned stimulus (UCS) elicited an automatic unconditioned response (UCR) in the form of salivation.