What is learning: a relatively permanent change in behavior brought about by experience, making associations and seeing contingencies, the ability to modify future behavior as a result of past experience is adaptive! Ivan pavlov [1849-1936: russian physiologist, digestion, became interested in the way behavior is conditioned by association. The tone became a(n) ______, and the salivation to the sound of the tone became a(n)_______ answer: conditioned stimulus; conditioned response. Cs is presented after a period of extinction is called____ answer: spontaneous recovery. Edward thorndike [1898-1949: american psychologist- contemporary pavlov, law of effect- actions that in some way bring about a favorable response will be repeated. Operant conditioning: skinner box, soundproof chamber with a bar or key that an animal can manipulate to obtain a food or water reinforce, contains a device to record responses. Types of reward: reinforcement- any event that increases the future probability a behavior will occur. You want him to stop, so you pick him up.