When Pavlov placed meat powder in the mouths of canine subjects, they began to salivate. The food acted as a/an:
A) unconditioned stimulus.
B) successive approximation.
C) extrinsic reinforcer.
D) secondary reinforcer.

Question

Quizplus · Accepted Answer

The meat powder is an unconditioned stimulus because it naturally and automatically elicits a response (salivation) without any prior learning.

When Pavlov Placed Meat Powder in the Mouths of Canine