ABSTRACT
Information integration theory (IIT) is a cognitive theory based on the idea that information and its modes of processing are the unifying principles of psychology. Beside the axioms that form the conceptual basis of IIT, Anderson proposes the existence of three psychological laws, averaging, adding, and multiplying, which represent the natural applications of the axioms. Psychological laws, like the addition law illustrated in the example above, embody the structure of the internal world and thus can be considered as the key elements underlying human psychology. Anderson's proposal of unified psychology rests on the specification of two axioms, which account for the general features of human cognition, and of three laws, which describe different ways to integrate psychological representations within a traditional input, elaboration, and output frame of reference. Delving into more detail about the nature of the object of psychology, Anderson assumes that psychology deals with the processing of information in order to produce actions directed toward goals.
