According to the Rescorla-Wagner theory of conditioning, blocking occurs because... Group of answer choices the CS has already taken up most of the available associative strength. familiar stimuli are more difficult to condition. the CS gathers more associative strength than the US. the US has already taken up most of the available associative strength.

Explanation:

How does the Rescorla Wagner model explain the blocking effect?

This effect was most famously explained by the Rescorla–Wagner model. The model says, essentially, that if one CS (here the light) already fully predicts that the US will come, nothing will be learned about a second CS (here the tone) that accompanies the first CS.Robert Rescorla and Allen Wagner were the first to realize what about classical conditioning? ... those in a vegetative state showed trace conditioning but those who were unconscious did not.According to stimulus substitution theory, after pairing the new stimulus with the existing conditioned stimulus it is possible to replace the first CS with the new stimulus. For instance, you have conditioned a rat to respond to a whistle as a signal that it is about to be fed.

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