Ivan Pavlov Studied the Reflexive Flow of Saliva in Dogs

Multiple Choice

Ivan Pavlov studied the reflexive flow of saliva in dogs. He used meat powder or other food to trigger the salivation. It was later observed that the salivation in the dog was triggered when the dog saw its dog dish, even before the food was placed in it. In this instance, the dog dish is the ________.

A) conditioned stimulus
B) unconditioned stimulus
C) conditioned response
D) unconditioned response