Making Sense of Consciousness as Integrated Information: Evolution and Issues of Integrated Information Theory
Journal of Cognitive Science March 31, 2019 Kyumin Moon, Hongju Pae
Integrated Information Theory (IIT) proposes that consciousness arises from a physical system's capacity to integrate information, and that the fundamental properties of experience can be analyzed through such informational properties. This article critically appraises IIT, tracing its theoretical evolution and mathematical modeling over the last decade, while highlighting key controversies and intra-model issues. The authors examine major transitions in the theory and present extra-model problems with its principles. They conclude that for future development, IIT should more seriously consider metacognitive accessibility to experience.