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Mechanism Integrated Information
Authors:Leonardo S Barbosa  William Marshall  Larissa Albantakis  Giulio Tononi
Institution:1.Department of Psychiatry, University of Wisconsin-Madison, Madison, WI 53719, USA; (L.S.B.); (W.M.); (L.A.);2.Department of Mathematics and Statistics, Brock University, St. Catharines, ON L2S 3A1, Canada
Abstract:The Integrated Information Theory (IIT) of consciousness starts from essential phenomenological properties, which are then translated into postulates that any physical system must satisfy in order to specify the physical substrate of consciousness. We recently introduced an information measure (Barbosa et al., 2020) that captures three postulates of IIT—existence, intrinsicality and information—and is unique. Here we show that the new measure also satisfies the remaining postulates of IIT—integration and exclusion—and create the framework that identifies maximally irreducible mechanisms. These mechanisms can then form maximally irreducible systems, which in turn will specify the physical substrate of conscious experience.
Keywords:causation  consciousness  intrinsic  existence
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