Intrinsic reinforcement refers to the self -satisfaction that comes from problem solving or learning something. According to the Gestaltists, this feeling of satisfaction occurs because solving a problem or learning something restores one's cognitive equilibrium . Moreover, Intrinsic reinforcement is reinforcement provided by the mere act of performing the behavior ; the performance of the behavior is inherently reinforcing.
Introduction refers to the section of a scientific paper that describes the current state of the body of knowledge; the portion of a technical paper that specifies the problem to be studied and tells why it is important. Moreover, Introduction is the first major section of a research report, which presents a logical development of the research question including a review of the relevant background literature, a statement of the research question or hypothesis, and a brief description of the methods used to answer the question or test the hypothesis.