Head to head
Attention Schema Theory vs Nagel’s Mind and Cosmos
Attention Schema Theory and Nagel's Mind and Cosmos, compared field by field from their entries in the Atlas.
At a glance
- Attention Schema Theory belongs to the Materialism family in Kuhn's Landscape of Consciousness, Nagel’s Mind and Cosmos to Challenge.
- Attention Schema Theory treats consciousness as emergent; Nagel’s Mind and Cosmos treats it as fundamental.
- On AI consciousness, Attention Schema Theory says “Likely” and Nagel’s Mind and Cosmos says “Uncertain”.
- On life after death, Attention Schema Theory says “No” and Nagel’s Mind and Cosmos says “Conditional”.
- On mind uploading, Attention Schema Theory says “Possible” and Nagel’s Mind and Cosmos says “Unlikely”.
- On meaning and purpose, Attention Schema Theory says “Humanistic only” and Nagel’s Mind and Cosmos says “Cosmic/Ultimate”.
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The claim
In brief
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.
Nagel’s Mind and CosmosThis perspective challenges the prevailing materialist Neo-Darwinian conception of nature, arguing that it fails to account for the irreducible nature of subjective experience, or 'what it is like' to be a conscious organism. It proposes that mind must be incorporated as a fundamental principle of nature itself.
What consciousness is
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.
Nagel’s Mind and CosmosConsciousness is fundamentally subjective experience—'how it is for the subject himself'—which resists reduction to purely physical, third-person descriptions.
Big questions
Can AI be conscious?Differ
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.
Nagel’s Mind and CosmosUncertainAs a critique of functionalism and reductionism, Nagel's view suggests that purely computational entities lacking fundamental mental properties are likely philosophical zombies; outcome depends on whether future AI can instantiate the hypothesized universal mental principles.
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.
Nagel’s Mind and CosmosConditionalIf consciousness is a universal, fundamental property rather than a biological emergent, its essence may persist after bodily dissolution (inferred from panpsychist leanings), though likely without retention of personal identity.
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.
Nagel’s Mind and CosmosUnlikelyThe irreducibility of subjective experience means duplication of physical/functional patterns alone would fail to transfer the original first-person consciousness.
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.
Nagel’s Mind and CosmosCosmic/UltimateExplicitly seeks to incorporate mind as a fundamental natural principle to overcome the 'pointlessness' implied by materialism, suggesting a non-theistic, inherent cosmic purpose or value.
Nature of mind
Ontology
Attention Schema TheoryPhysicalism
Nagel’s Mind and CosmosPhilosophical Challenge (leaning towards Universal Monism/Panpsychism)
Mind and body
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.
Nagel’s Mind and CosmosCritiques the current conception of the mind-body relationship, asserting that we lack any conception of how physical and phenomenological aspects could be related or identical.
Fundamental or emergent
Attention Schema TheoryEmergent
Nagel’s Mind and CosmosPrimitive (or fundamental)
Qualia
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.
Nagel’s Mind and CosmosQualia (felt qualities) are the core of the problem, and Nagel argues that no objective or physicalist explanation currently formulated can account for their subjective reality.
How it works
Mechanism
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.
Nagel’s Mind and CosmosPrimarily focuses on exposing the conceptual limits of physical reductionism rather than positing a definitive mechanism. Mechanistically, his solution suggests consciousness arises through the composition of fundamental, panpsychic-like elements.
Where it is
Attention Schema TheoryLocated within the biological, information-processing system of the brain.
Nagel’s Mind and CosmosUniversal/Systemic (inferred from universal monism/panpsychism leanings) or inherent in the fabric of nature.
What it does
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.
Nagel’s Mind and CosmosPrimarily critical, arguing against the materialist view that consciousness is an inert epiphenomenon. If mind is a fundamental principle, it implies an irreducible, organizing role in the cosmos.
Evidence and criticism
Testability
Attention Schema TheoryEmpirically testable
Nagel’s Mind and CosmosUncertain/Primarily Conceptual. The theory's strength lies in its diagnosis of the explanatory gap, not in empirical verification. His suggested alternative (panpsychism) is highly speculative.
Tests so far
Attention Schema TheoryNot stated
Nagel’s Mind and CosmosNot stated
Criticisms
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.
Nagel’s Mind and CosmosCriticized for retreating to 'mysterianism' and for rejecting established scientific frameworks (Neo-Darwinian materialism) without offering a concrete, robust, and detailed secular ontology as an alternative.
Sources
Key sources
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)
Nagel’s Mind and Cosmos
- What Is It Like to Be a Bat? (1974)
- The View from Nowhere (1986)
- Mind & Cosmos: Why the Materialist Neo-Darwinian Conception of Nature Is Almost Certainly False (2012)