Editing Classical conditioning (section)

===Stimulus generalization===
''Stimulus generalization'' is said to occur if, after a particular CS has come to elicit a CR, a similar test stimulus is found to elicit the same CR. Usually the more similar the test stimulus is to the CS the stronger the CR will be to the test stimulus.<ref name="Shettleworth_2010"/> Conversely, the more the test stimulus differs from the CS, the weaker the CR will be, or the more it will differ from that previously observed.