Applied behavior analysis History Other factors in the development of ABA
Ivan Pavlov was a Russian man who studied psychology and physiology. He studied respondent behavior. Respondent behavior is behavior that is involuntary. Respondent behavior is caused physiological reactions of the body. In 1897, he started to do experiments about respondent behavior. He came up with the theory of classical conditioning after doing these experiments. Classical conditioning is also called pavlovian conditioning. Classical conditioning says that if a neutral stimulus keeps being paired with a stimulus that causes a physiological reaction, eventually the neutral stimulus will cause the physiological reaction.