You feel fine as you sit down in your usual seat in German class. However, when Dr. Kraus announces that there will be a pop quiz on the 100 most difficult vocabulary words covered in the last few classes, your heart starts pounding and you get a queasy feeling in your stomach. This reaction is most likely a(n)
A) UCS.
B) UCR.
C) CS.
D) CR.

Question

Quizplus · Accepted Answer

The queasy feeling in the stomach and pounding heart are a conditioned response (CR) to the announcement of the pop quiz, which serves as a conditioned stimulus (CS) associated with the previous experiences of learning difficult vocabulary words. The UCS (unconditioned stimulus) would be an event that naturally elicits the reaction without any prior learning, while the UCR (unconditioned response) is the natural reaction to the UCS.

You Feel Fine as You Sit Down in Your Usual