In Pavlov's experiments, what served as the unconditioned stimulus?

In Pavlov's experiments, what served as the unconditioned stimulus?

• A. Bowl of meat powder
• B. Bell
• C. Salivation
• D. The dog

Answer: (A)

In classical conditioning, the unconditioned stimulus is something that naturally triggers a reflex without any learning. In Pavlov’s dogs, the bowl of meat powder naturally makes the dog salivate, so it is the unconditioned stimulus. The salivation to the meat powder is the unconditioned response. After conditioning, the bell becomes a conditioned stimulus because it starts to elicit salivation (the conditioned response) once paired with the meat powder. The dog is simply the organism undergoing the learning process.

In classical conditioning, the unconditioned stimulus is something that naturally triggers a reflex without any learning. In Pavlov’s dogs, the bowl of meat powder naturally makes the dog salivate, so it is the unconditioned stimulus. The salivation to the meat powder is the unconditioned response. After conditioning, the bell becomes a conditioned stimulus because it starts to elicit salivation (the conditioned response) once paired with the meat powder. The dog is simply the organism undergoing the learning process.