What does the C represent in the Rescorla-Wagner model?
The associative strength of a stimulus is expressed directly by the behavior it elicits/inhibits. The salience of a CS (alpha in the equation) and the strength of the US (beta) are constants and do not change during training.
What did the Rescorla-Wagner model predict?
Therefore, with these parameters, Rescorla and Wagner’s model predicts that as the value of p1 increases, the difference between p1 and p2 that is necessary to produce excitatory learning will increase.
What is a major problem with the Rescorla-Wagner model?
Conclusion. The Rescorla-Wagner model does a great job of explaining many important phenomena of classical conditioning, and even predicts some unexpected results. However, it fails to model some very basic phenomena such as sponta- neous recovery, rapid reacquisition, and latent inhibition.
How does the Rescorla-Wagner model explained blocking?
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.
What is actually blocked during blocking psychology?
In psychology, the term blocking refers broadly to failures to express knowledge or skill because of failures of learning or memory, as in the everyday experience of “blocking” of the name of a familiar face or object.
What is an example of blocking?
In the statistical theory of the design of experiments, blocking is the arranging of experimental units in groups (blocks) that are similar to one another. An example of a blocking factor might be the sex of a patient; by blocking on sex, this source of variability is controlled for, thus leading to greater accuracy.
Why is the blocking effect important?
Blocking is an important phenomenon because it is typically interpreted as evidence for a critical role of prediction error in learning: the discrepancy between what is expected and what is observed.
What is a blocking effect provide an example?
Blocking was first described in studies of classical (or Pavlovian) conditioning (Kamin, 1968). For example, if a dog is repeatedly exposed to a tone (the first conditioned stimulus, CS1), together with food (the unconditioned stimulus, US), the dog salivates when the tone is presented (conditioned response, CR).