Type of associative learning discovered by Pavlov. Classical conditioning corresponds to the transfer of the ability from one stimulus to trigger a response to another stimulus. For example, before conditioning, a meat pellet (unconditioned stimulus) triggers salivation in dogs (unconditioned response). However, a sound (neutral stimulus) is unable to cause this reaction. Classical conditioning involves repeating the combination of the sound with the meat pellet. Conditioning is established when the sound (now conditioned stimulus) becomes capable of causing the dog's salivation (now conditioned response).