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. The sight of dogs is the __________.
A) UCS
B) CS
C) UCR
D) CR

Question

Quizplus · Accepted Answer

The sight of dogs is the conditioned stimulus (CS) because it now triggers a response (Posie crying) due to its association with the original unconditioned stimulus (UCS) of being bitten by the large brown dog, which elicited an unconditioned response (UCR) of pain and crying. The response of crying when seeing dogs now constitutes the conditioned response (CR).

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