Summary

Here are the main points we've covered:

1. When a neutral stimulus (CS) is paired with another stimulus (US) that always evokes a particular response (UR), a conditioned association is formed between the CS and the US. If the CS is presented by itself it will evoke the response (now called CR).

2. This response to the conditioned stimulus often generalizes to other similar stimuli although people can learn to discriminate between similar stimuli if the US is consistently paired with only one of them.