[{"Bold_text": "noun", "List Items": ["Also called operant conditioning operant conditioning, instrumental conditioning instrumental conditioning.a process of changing behavior by rewarding or punishing a subject each time an action is performed until the subject associates the action with pleasure or distress.", "Also called classical conditioning classical conditioning, Pavlovian conditioning Pavlovian conditioning, respondent conditioning respondent conditioning.a process in which a stimulus that was previously neutral, as the sound of a bell, comes to evoke a particular response, as salivation, by being repeatedly paired with another stimulus that normally evokes the response, as the taste of food."]}]