An 11-year-old girl was suffering from a disease in which her own immune system attacked her body.To treat her,they first paired cod liver oil with an immune-suppressant drug.Later,when she only received pure cod liver oil,her immune system still showed the intended impairment.In this instance,the CS would be the:

Question

Quizplus · Accepted Answer

The CS (conditioned stimulus) in this case is the cod liver oil, as it was paired with the immune-suppressant drug to create the immune system impairment. When only pure cod liver oil was given, the immune system still showed the intended impairment, indicating that the cod liver oil alone had become the CS.

An 11-Year-Old Girl Was Suffering from a Disease in Which