Ivan Pavlov studied the reflexive flow of saliva in dogs. He used meat powder or other food to trigger the salivation. In this instance, the meat powder was the ________.
A) conditioned stimulus
B) unconditioned stimulus
C) conditioned response
D) unconditioned response

Question

Quizplus · Accepted Answer

Ivan Pavlov used meat powder as an unconditioned stimulus to trigger the unconditioned response of salivation in dogs. Later, he used a neutral stimulus (such as a bell) paired with the meat powder to create a conditioned response of salivation to the sound of the bell. Therefore, in the context of this question, the meat powder is the unconditioned stimulus.

Ivan Pavlov Studied the Reflexive Flow of Saliva in Dogs