Nine-month-old Albert cried when a large steel bar was struck with a hammer while he viewed a white rat.In this acquisition phase,the white rat was the:
A)unconditioned response.
B)conditioned response.
C)unconditioned stimulus.
D)conditioned stimulus.

Question

Quizplus · Accepted Answer

In the acquisition phase of classical conditioning, an unconditioned stimulus (UCS) is repeatedly paired with a neutral stimulus (NS) until the NS becomes a conditioned stimulus (CS) that elicits a conditioned response (CR) similar to the original unconditioned response (UCR). In this case, the steel bar is the UCS, the white rat is the NS, and the crying is the UCR. After several pairings, Albert began to cry even when only presented with the white rat, indicating that the rat had become a conditioned stimulus (CS). Therefore, the correct choice is D, conditioned stimulus.

Nine-Month-Old Albert Cried When a Large Steel Bar Was Struck