Christmas (unconditioned stimulus) is likely to create positive emotions of happiness, excitement and family (unconditioned response). On the other hand, before conditioning takes place, Coca-Cola (neutral stimulus) does not create any emotions, since no brand associations yet exist. However, by combining Christmas and Coca-Cola in the famous television advert, the positive emotions of happiness, excitement and family re-emerge,to the extent that when Coca-Cola is subsequently displayed alone (conditioned stimulus), these emotions persist (conditioned response), thus creating a brand association between Coca-Cola and Christmas
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