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Chalmers’s Panpsychism vs Attention Schema Theory

Chalmers’s Panpsychism and Attention Schema Theory, compared field by field from their entries in the Atlas.

At a glance

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The claim

In brief
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.
Attention Schema TheoryThis theory posits that consciousness arises when the brain constructs a quick, simplified, internal model—an attention schema—of its own process of attention. The brain mistakenly interprets and reports this internal representation as a subjective, non-physical essence or a 'self-caricature,' even though it is fundamentally a computational product.
What consciousness is
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.
Attention Schema TheoryConsciousness is identified as the brain’s internal representation or simplified model of its own mechanism of attention (the attention schema), which is a specific example of higher-order thought.

Big questions

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.
Attention Schema TheoryLikelySince consciousness is defined as a computational process (the creation of an attention schema), in principle, artificial systems that implement the necessary computational architecture could become conscious. Furthermore, observers will inevitably make the social attribution of consciousness to sufficiently complex AI systems that act like they are conscious.
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.
Attention Schema TheoryNoAs a Materialist/Neurobiological theory, consciousness is tied to the physical substrate (the biological, information-processing machine), precluding survival beyond the decay of the body.
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.
Attention Schema TheoryPossibleIf the consciousness is realized as a computational structure (the attention schema), and if this structure and the relevant information processing systems can be accurately uploaded to a non-biological medium, virtual immortality is theoretically possible.
Chalmers’s PanpsychismUncertainPlacing experience in the basic fabric of nature gives it a cosmic footing, but Chalmers draws no conclusions about meaning or purpose.
Attention Schema TheoryHumanistic onlyConsciousness provides an adaptive, evolutionary purpose (monitoring and regulating attention for action control), but does not imply any ultimate or cosmic meaning, consistent with Materialism.

Nature of mind

Ontology
Chalmers’s PanpsychismPanpsychism (Russellian monism)
Attention Schema TheoryPhysicalism
Mind and body
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.
Attention Schema TheoryConsciousness is the report generated by a biological, information processing machine (the brain) through the assessment of its internal data, meaning mental states are computational and wholly physical.
Fundamental or emergent
Chalmers’s PanpsychismPrimitive
Attention Schema TheoryEmergent
Qualia
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.
Attention Schema TheoryConsciousness is described as a 'self-caricature' or an illusory report of a non-physical essence, suggesting a deflationary or illusionist account of qualia, akin to Daniel Dennett’s view.

How it works

Mechanism
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.
Attention Schema TheoryThe construction and maintenance of a simplified internal model (the attention schema) of the process of attention, rooted in principles from control engineering.
Where it is
Chalmers’s PanpsychismThroughout physical reality, at the level of its most basic entities.
Attention Schema TheoryLocated within the biological, information-processing system of the brain.
What it does
Chalmers’s PanpsychismBecause phenomenal or protophenomenal properties are the categorical bases of physical dispositions, consciousness sits at the base of physical causation itself.
Attention Schema TheoryThe functional role of the attention schema is to monitor and regulate the brain's attention in order to control actions in the world. The resulting capacity allows the system to claim consciousness.

Evidence and criticism

Testability
Chalmers’s PanpsychismConceptually testable
Attention Schema TheoryEmpirically testable
Tests so far
Chalmers’s PanpsychismNot stated
Attention Schema TheoryNot stated
Criticisms
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.
Attention Schema TheoryThe theory explains how a system can *claim* consciousness but faces the general limitation, shared by similar functionalist models, of conclusively proving or explaining the actual subjective feel (the 'anybody home' problem) which remains eternally uncertain, even by the proponent's admission.

Sources

Key sources
Chalmers’s Panpsychism
  • Chalmers’s Panpsychism, David Chalmers (Landscape of Consciousness entry)
Attention Schema Theory
  • True nature of consciousness: solving the biggest mystery of your mind, M. Graziano (2019)
  • Rethinking Consciousness: A Scientific Theory of Subjective Experience, M. Graziano (2019)
  • Can consciousness be non-biological?, M. Graziano (2014)

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