conditioning that pairs a neutral stimulus with a stimulus that evokes a reflex; the stimulus that evokes the reflex is given whether or not the conditioned response occurs until eventually the neutral stimulus comes to evoke the reflex
Classical conditioning (also Pavlovian conditioning or respondent conditioning) is a form of learning in which the conditioned stimulus or CS, comes to signal the occurrence of a second stimulus, the unconditioned stimulus or US. (A stimulus is a factor that causes a response in an organism.