Intrinsic motivation and Self-determination theory

Self-determination theory (SDT) is a macro theory of human motivation and personality that concerns people's inherent growth tendencies and innate psychological needs. It is concerned with the motivation behind choices people make without external influence and interference. SDT focuses on the degree to which an individual's behavior is self-motivated and self-determined - wikipedia

Consider for a moment your motivation for reading this article. If you are reading it because you have an interest in psychology and simply want to know more about the topic of motivation, then you are acting based upon intrinsic motivation. If, however, you are reading this because you have to learn the information for a class and avoid getting a bad grade, then you are acting based upon extrinsic motivation. - Very well mind