During this semester, my favorite subject has been Basic principles of learning . The subject is famous because it has a high percentage of disapproval. Also, it is a polemic subject because it works with non-humans animals, especially with rats. In fact, you can find some graffiti’s in relation to the Speciesism and animal ethics in leaning laboratory. The teachers in charge of the subject investigate the bond between the principles of learning and behavior and psychotherapeutic advances, that is, the dialog between basic and applicate investigation. The content of the subject consist in two main points: Pavlovian conditioning and instrumental conditioning. The first of them is referred to the learning of signals and the second one to the learning of consequences (the reinforcements increases the frequency of the response, however, the punishments decreases it). Besides, the different leaning processes are put to the test in the laboratory: we can choose humans or r...