Blocking occurs because the second CS
A) prevents the first CS from predicting the UCS.
B) provides no additional information in predicting when the UCS will occur.
C) takes over from the first CS as the predictor of the UCS.
D) adds predictive value to the first CS in anticipating the occurrence of the UCS.
E) prevents of occurrence of the UCS after the first CS has appeared.

Question

Quizplus · Accepted Answer

Blocking occurs when a second conditioned stimulus (CS) provides no new information about the occurrence of the unconditioned stimulus (UCS) because the first CS already predicts the UCS. This means the animal or individual does not learn to associate the second CS with the UCS, as the first CS's prediction is sufficient.

Blocking Occurs Because the Second CS