Head to head
Global Workspace Theory vs Chalmers’s Panpsychism
Baars’s and Dehaene’s Global Workspace Theory and Chalmers’s Panpsychism, compared field by field from their entries in the Atlas.
At a glance
- Global Workspace Theory belongs to the Materialism family in Kuhn's Landscape of Consciousness, Chalmers’s Panpsychism to Panpsychism.
- Global Workspace Theory treats consciousness as emergent; Chalmers’s Panpsychism treats it as fundamental.
- On AI consciousness, Global Workspace Theory says “Yes” and Chalmers’s Panpsychism says “Conditional”.
- On life after death, Global Workspace Theory says “No” and Chalmers’s Panpsychism says “Uncertain”.
- On mind uploading, Global Workspace Theory says “Yes” and Chalmers’s Panpsychism says “Uncertain”.
- On meaning and purpose, Global Workspace Theory says “Humanistic only” and Chalmers’s Panpsychism says “Uncertain”.
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The claim
In brief
Global Workspace TheoryThis theory posits that conscious awareness is constituted by specific multi-sensory, multi-cognitive information that achieves brain-wide presence and broad accessibility. It conceptualizes consciousness as an inner 'theater' where this information is globally broadcast, reconciling the limited capacity of momentary conscious content with vast long-term memory access.
Chalmers’s PanpsychismDavid Chalmers argues that consciousness may be a fundamental feature of physical reality, carried by the intrinsic properties of its most basic entities. He treats panpsychism, and its cousin panprotopsychism, as a synthesis of materialism and dualism, and holds that it would become the most promising answer to the mind-body problem if someone solves the combination problem.
What consciousness is
Global Workspace TheoryConsciousness is identified as the instantaneous global availability and broad accessibility of specific, integrated information across numerous specialized modular systems in the brain.
Chalmers’s PanpsychismChalmers identifies consciousness with the intrinsic properties of fundamental physical entities, the categorical bases of the dispositions that physics describes. Physics tells us what basic entities do; on this view, phenomenal or protophenomenal properties are what they are.
Big questions
Can AI be conscious?Differ
Global Workspace TheoryYesSince the theory defines consciousness in terms of information-processing computations and architectures, and proponents suggest novel machine architectures could be based on these computations, AI consciousness is possible in principle.
Chalmers’s PanpsychismConditionalSince every physical system has phenomenal or protophenomenal properties at its base, an AI is built from the same ingredients as a brain. Whether it forms a unified conscious subject depends on how the unsolved combination problem is answered.
Global Workspace TheoryNoConsciousness is understood as being entirely dependent on specific, complex biological brain processes, which cease upon biological death.
Chalmers’s PanpsychismUncertainThe fundamental properties outlast any body, but nothing in the view says whether the particular combined subject survives once the brain's structure breaks down.
Global Workspace TheoryYesIf consciousness is wholly explained by the computational organization and information flow of the brain, a perfect duplication or uploading of these mechanisms into a non-biological substrate should preserve the first-person mental self.
Chalmers’s PanpsychismUncertainAn upload would be made of the same fundamental properties, but whether it reconstitutes the same subject turns on the unsolved combination problem.
Global Workspace TheoryHumanistic onlyAs a Materialist/Neurobiological theory, it does not mandate ultimate cosmic meaning or purpose, but consciousness provides essential functions (like memory reconciliation and integrated awareness) that underpin human agency and self-created value.
Chalmers’s PanpsychismUncertainPlacing experience in the basic fabric of nature gives it a cosmic footing, but Chalmers draws no conclusions about meaning or purpose.
Nature of mind
Ontology
Global Workspace TheoryPhysicalism
Chalmers’s PanpsychismPanpsychism (Russellian monism)
Mind and body
Global Workspace TheoryIdentity/Correlation. The mind (conscious awareness) is identified as, or strongly correlates with, the specific, biologically realized processes of global information broadcasting in the brain.
Chalmers’s PanpsychismMind and matter are two sides of one fundamental stuff that has both physical and phenomenal properties. Chalmers places this ‘monism’ in the sixth of his six classes of views, the nonreductive ones that expand or reconceive physical ontology.
Fundamental or emergent
Global Workspace TheoryEmergent
Chalmers’s PanpsychismPrimitive
Qualia
Global Workspace TheoryPhenomenal experience (qualia) is accounted for by proposing a strictly biological mechanism for conscious awareness. Qualia correspond to the content of the integrated, reportable multi-sensory information that is broadly accessible within the global workspace.
Chalmers’s PanpsychismQualia are real and irreducible. In the panpsychist version they exist in simple form at the fundamental level; in the panprotopsychist version, basic entities have protophenomenal properties that are not themselves experiences but can ground them.
How it works
Mechanism
Global Workspace TheoryGlobal broadcasting and accessibility of information, allowing a single coherent content to be made available to many specialized, unconscious modules simultaneously.
Chalmers’s PanpsychismChalmers reasons dialectically. Materialism (thesis) meets dualism (antithesis) and yields panpsychism; panprotopsychism challenges it and yields Russellian monism; the combination problem then challenges Russellian monism, with no settled resolution yet.
Where it is
Global Workspace TheoryBrain-wide, encompassing widespread areas, particularly associated with frontal and parietal regions (often characterized as a 'front of the head' theory in contrast to 'back of the head' theories like IIT).
Chalmers’s PanpsychismThroughout physical reality, at the level of its most basic entities.
What it does
Global Workspace TheoryGlobal broadcasting constitutes consciousness. Functionally, it allows for flexible control and reconciliation between limited momentary conscious content and long-term memory resources.
Chalmers’s PanpsychismBecause phenomenal or protophenomenal properties are the categorical bases of physical dispositions, consciousness sits at the base of physical causation itself.
Evidence and criticism
Testability
Global Workspace TheoryEmpirically testable
Chalmers’s PanpsychismConceptually testable
Tests so far
Global Workspace TheoryNeuroimaging and computer modeling studies used to investigate its claims. It is implicitly subject to the 'neurogeographic' debate contrasting 'front of the head' theories with posterior theories.
Chalmers’s PanpsychismNot stated
Criticisms
Global Workspace TheoryCriticized for focusing on 'access' rather than genuine phenomenal experience, exemplified by the critique that the theory is 'all about access but not about seeing'. It faces tension regarding whether global broadcasting is necessary or merely a consequence of consciousness.
Chalmers’s PanpsychismThe combination problem is the central difficulty, and Chalmers concedes it is unsolved. He also calls panpsychism initially counterintuitive, holding that the sense of oddity fades on reflection.
Sources
Key sources
Global Workspace Theory
- A Cognitive Theory of Consciousness (1988)
- In the Theater of Consciousness (1997)
- Towards a cognitive neuroscience of consciousness: basic evidence and a workspace framework, Dehaene and Naccache (2000)
Chalmers’s Panpsychism
- Chalmers’s Panpsychism, David Chalmers (Landscape of Consciousness entry)