A 6-year-old child was suffering from a disease in which the immune system attacked the child's body. Treatment started with paired cod liver oil with an immune-suppressant drug. Later, when the child only received pure cod liver oil, the immune system still showed the intended impairment. In this instance, the CS would be the _____________.
A)immune system impairment triggered by the cod liver oil
B)immune system impairment triggered by the drug
C)cod liver oil
D)immune-suppressant drug

Question

Quizplus · Accepted Answer

In classical conditioning, the conditioned stimulus (CS) is the stimulus that eventually triggers a conditioned response after being paired with an unconditioned stimulus. In this case, the cod liver oil, which was initially neutral, became the CS when the child's immune system showed the intended impairment after receiving only the cod liver oil, indicating that the immune system's response had been conditioned to the cod liver oil.

A 6-Year-Old Child Was Suffering from a Disease in Which