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Integrated Information Theory is a theoretical framework that explicitly defines consciousness as being identical to the amount of integrated information (Φ) within a system, as established by Giulio Tononi in [1], [2], and [3]. The theory posits that the presence and level of consciousness are directly measurable through the mathematical quantification of this integrated information, as described in [4], [5], and [6].
Facts (19)
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Non-physicalist Theories of Consciousness cambridge.org 3 facts
claimAccording to the Integrated Information Theory, everything that has maximal integrated information is conscious, and the level of consciousness corresponds to the level of integrated information.
claimThe human brain contains very high levels of Φ (integrated information), particularly in areas considered necessary for consciousness, but small amounts of Φ can also be found at the level of fundamental physics, such as in protons and neutrons.
claimIntegrated Information Theory (IIT) implies panpsychism, or a position very close to it, because it suggests that particles possess a small amount of consciousness unless they are part of a larger system with higher integrated information (Φ), such as a brain, cell, or molecule, which would then be the conscious entity.
A Synergistic Workspace for Human Consciousness Revealed by ... elifesciences.org 3 facts
referenceThe paper 'Consciousness as Integrated Information' was published in The Biological Bulletin in 2008.
perspectiveThe researchers hypothesized that brain regions supporting consciousness should show reductions in integrated information during loss of consciousness, regardless of the cause, and that this information should be restored when consciousness returns.
claimIntegrated Information Theory (IIT) predicts that the loss of consciousness corresponds to reductions in integrated information.
Consciousness (Stanford Encyclopedia of Philosophy/Fall 2025 ... plato.stanford.edu 2 facts
claimIntegrated Information Theory (IIT) identifies consciousness with integrated information, which can exist in varying degrees.
claimAccording to Integrated Information Theory, simple devices like a single photo diode possess some degree of integrated information and therefore a limited degree of consciousness.
The evolution of human-type consciousness – a by-product of ... frontiersin.org 1 fact
referenceThe article 'The evolution of human-type consciousness – a by-product of mammalian innovation mechanism – a preliminary hypothesis' cites Tononi (2008), which proposes consciousness as integrated information.
Good Old-Fashioned Artificial Consciousness and the Intermediate ... frontiersin.org 1 fact
claimGiulio Tononi's Integrated Information Theory claims that integrated information possesses unity, which is a property also attributed to consciousness.
Six Theories of Consciousness - Mind Matters mindmatters.ai 1 fact
claimIntegrated Information Theory (IIT) is a mathematically founded emergence model that claims consciousness is identical to measurable integrated information (Φ).
The Problem of Hard and Easy Problems cambridge.org 1 fact
perspectiveTononi and Koch (2015) hold the view that consciousness is equivalent to integrated information, and therefore would argue that claiming an explanation of information discrimination and integration leaves consciousness unexplained is a conceptual mistake.
[2510.09858] AI and Consciousness - arXiv arxiv.org 1 fact
referenceThe paper 'AI and Consciousness' by Eric Schwitzgebel includes chapters covering topics such as the Turing Test, the Chinese Room, Global Workspace Theories, Higher Order Theories, Integrated Information, and the question of whether biological substrate matters for consciousness.
Psychology and Cognitive Science on Consciousness klinikong.com 1 fact
claimIntegrated Information Theory posits that consciousness corresponds to the amount of integrated information in a system.
Psychedelics and Consciousness: Distinctions, Demarcations, and ... ouci.dntb.gov.ua 1 fact
referenceTononi published 'Consciousness as integrated information: a provisional manifesto' in the Biological Bulletin, which outlines the theory of consciousness as integrated information.
Adversarial testing of global neuronal workspace and ... - Nature nature.com 1 fact
claimIntegrated Information Theory (IIT) proposes that consciousness is the intrinsic ability of a neuronal network to influence itself, determined by the amount of maximally irreducible integrated information (phi) supported by a network in a state.
Panpsychism - Wikipedia en.wikipedia.org 1 fact
measurementGiulio Tononi created a measurement for integrated information called phi (Φ), which he uses to measure consciousness based on the belief that consciousness is equivalent to integrated information.
In defense of scientifically and philosophically (not politically ... blog.apaonline.org 1 fact
claimIntegrated Information Theory (IIT) postulates that the physical substrate of consciousness exhibits a maximally irreducible cause-effect structure associated with integrated information.
Hard problem of consciousness - Wikipedia en.wikipedia.org 1 fact
claimIntegrated information theory proposes an identity between consciousness and integrated information, with integrated information denoted as Φ and defined mathematically.