Pavlov_SS_Model - between the neural center for the US and...

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PAVLOV'S STIMULUS SUBSTITUTION MODEL The oldest idea about what animals learn in classical conditioning is based on Pavlov’s model of conditioning. Pavlov suggested that as a result of conditioning, the CS is able to elicit the same response as the US. Why would Pavlov assume the CR and the UR were always the same response? Because Pavlov was observing the same digestive responses in his dogs as both the CR and the UR. Pavlov viewed the brain as consisting of discrete neural center. He believed that one brain center was responsible for processing the US and a different center was responsible for processing the CS. A third brain center was responsible for generating the response (UR). Learned Pathway CS US Center Center Innate Pathway UR Center Because the UR occurred whenever the US was presented, Pavlov assumed that there was a neural connection
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Unformatted text preview: between the neural center for the US and the neural center for the UR. The learning of CRs takes place through the establishment of new functional neural pathways. With repeated CS/US pairings, a connection develops between the brain center for the CS and the brain center for the US. Presentation of the CS results in excitation of the US neural center, by way of the new learned pathway. Excitation of the US neural center then generates the UR. Therefore, conditioning enables the CS to elicit the UR. And that the CS becomes a substitute for the US, so that the response initially elicited by the US is now elicited by the CS. This stimulus substitution model predicts that the CR will be similar to the UR....
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