As she walked through her neighborhood, Posie, a 6-year-old girl, frequently saw a large brown dog. She repeatedly walked to the dog to pet it, but as her hand approached the animal, it barked and bit her. The bite was painful and caused her to cry. Now Posie cries when she sees dogs of any color or size. In the example, the dog's bark and bite are the __________.
A) UCS
B) CS
C) UCR
D) CR

Question

Quizplus · Accepted Answer

The dog's bark and bite act as the Unconditioned Stimulus (UCS) because they naturally (without prior learning) cause Posie to feel pain and cry, which is an unconditioned response (UCR) to the stimulus.

As She Walked Through Her Neighborhood, Posie, a 6-Year-Old Girl