In-Class Activity

April 12, 2001


Part I


Create an example of classical conditioning.Diagram your example, using the terms NS, UCS, UCR, CS, and CR.



Bell†††††††††††† Food††††††††††† Salivate

NS→†††††††††† UCS→†††††††† UCR


NS is paired with UCS, becomes CS


Bell††† Salivate

CS→†† CR



How could you strengthen the conditioning?How could you weaken it?



1.Have more of pairings of the NS (bell) with UCS (food)


†††††††† 2.Increase the size or taste of the UCS (food) to increase its saliency


†††††††† 3.Contiguity- Implement UCS (food) immediately after NS (bell)



1.     Extinction- Stop implementing UCS (food) after CS (bell)


2.Exhaustion- Have bell (CS) ring all the time


3. Counter Conditioning- It would be difficult to implement this technique with this example.Instead:

Rabbits††† Bite†††††††††††† Fear

NS→†††††† UCS→†††††††† UCR


Rabbits††† Fear

CS→†††††† CR


Counter conditioning could be implemented in this example by introducing a new CS, ice cream, which produces a response (pleasure), that isnít compatible with the old CR (fear).The old CS (rabbits) is then exposed, but doesnít produce the old CR.


Create an example of classical conditioning pertains to instruction.Diagram your example, using the terms NS, UCS, UCR, CS, and CR.


Test†††††††††††† Failing††††††††† Stress

NS→†††††††††† UCS→†††††††† CS


Test††† Stress

CS→†† CR