Classical conditioning in aplysia

Classical conditioning in aplysia - Classical conditioning...

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Classical conditioning in aplysia This is a concept that many students are struggling with. It is quite a difficult concept so don’t worry if you don’t understand it right away. It is important first to understand the classical conditioning contingencies that are happening. If you recall from term one, classical conditioning is simply the association of two stimuli. The unconditioned stimulus (US) is a stimuli that naturally elicits an unconditioned response (UR). When a stimuli repeatedly occurs just before the US, your brain recognizes the relationship between the two stimuli and forms a contingency. This conditioned stimuli (CS) acts as a cue that the US is coming up. And after many trials, the CS begins to elicit its own response very similar to the UR. This is because the brain expects the US to be coming since so many times before, the US followed the appearance of the CS. This response is called the conditioned response (CR). So in the case of the aplysia, when threatened (US), it withdraws its gills (UR). Kandel
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This note was uploaded on 12/05/2011 for the course PSYCH 1XX3 taught by Professor Kim during the Spring '11 term at McMaster University.

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Classical conditioning in aplysia - Classical conditioning...

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