A framework for consciousness

Crick, Koch · Nature Neuroscience · 2003 · theoretical-neuroscience · 10.1038/nn0203-119 · record crick2003-a-framework-for-consciousness
tag layer · index · concepts · authors · עברית
Where this record's text came from. faceted 2026-08 by reading the locally held text (pdftext); every evidence string verified as an exact substring of that text before merging. method is recorded as 'theoretical-framework' rather than any of the listed values: the paper is a Nature Neuroscience commentary that reports no new data and explicitly denies being a hypothesis set, so 'review' would misdescribe it. The PDF extraction carries heavy running-header noise (vertically-set journal URL characters interleaved between pages) and the file ends mid-sentence in the 'Related ideas' section ('For an extensive'), so the closing paragraphs and reference list are absent; all quotes above were taken from clean, unbroken passages in the body. The third claim_relation is a self-contradiction — the authors retract their own earlier sufficiency claim about 40 Hz synchrony — which 'contradicts' captures better than 'extends'. faceted 2026-08-14 and 2026-08-15 schema-0.3 passes: every quote verified as an exact substring of the staged text and anchored at merge time; concept terms verified present; every edge endpoint an existing node.
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Other fields define these differently the same word, defined another way in another discipline
qualia 2 fields · binding 2 fields · framework 2 fields

Tags on this paper

Every tag the record carries, each linking to every other paper in the corpus that carries it. A tag appears here whether or not its words occur in the article — the spans below are only the ones a sentence in this paper licenses. Of the 3 concept tags on this paper, all 3 are grounded in a quoted sentence.
framework qualia NCC Attention makes an object conscious by biasing the competition between rival neuronal coalitions while those coalitions are still forming, rather than by acting on an already-formed percept. Positive feedback loops iteratively re-excite a neuron, driving its activity past the consciousness threshold and then holding it there for the duration of a snapshot. Feature detectors are built by neurons detecting recurring correlations in their inputs and modifying their synapses so those inputs drive them more easily — the brain is thereby detecting apparent causation. Because motion is coded as a constant firing rate held fixed within one snapshot, a change of motion has no explicit representation, which is why acceleration is hard to perceive. private projective field explicit representation essential node zombie modes net-wave coalitions of neurons snapshots binding penumbra theory
Method, as described: theoretical-framework

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relation to other workclaim_relationshow this paper stands to another: agrees, contradicts, extends, qualifies
claim typeclaim_typethe shape of the claim: existence, mechanism, method, critique, prediction, null
concept edgeconcept_edgesan asserted relation between two concepts, with the sentence asserting it
conceptconceptsan idea the paper works with, quoted where the paper uses it
content tagcontent_tagsa finding, definition, quantity, statistic or variable named in the paper
limitationlimitationswhat the paper says its evidence cannot support
mechanismmechanismshow the reported effect is said to come about
methodmethodhow the paper produced its evidence
phenomenonphenomenonthe effect or regularity under study
sensesensesa distinct use of a term, quoted where the paper fixes it
transfertransfersa method or concept carried in from another field

The paper

The full text is not reproduced here. This article is not cleared for redistribution, so the page carries the tag layer only. Its evidence sentences are withheld; the grounding status remains with each tag, and the article itself is at https://doi.org/10.1038/nn0203-119. The reading view exists for the papers whose licence permits it.

Every tag on this page

claim_relations 3 · claim_type 1 · concept_edges 1 · concepts 3 · content_tags 22 · limitations 5 · mechanisms 4 · method 1 · phenomenon 1 · senses 3 · transfers 1

Relations on this page carry a quotation for the claim. Where a relation was separately evidenced — and so tested against the vocabulary for its type — the row says so; none of 1 relation here carry that mark. The rest are the tagger’s reading of the sentence quoted beside them.

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facettagfieldconf.whose words
claim_typemechanism
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claim_typethe paper's words
phenomenonneural correlates of visual consciousness
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phenomenonthe paper's words
methodtheory
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also in: theory
methodthe paper's words
mechanismsmechanisms
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mechanisms[0]the tagger's words
mechanismsmechanisms
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mechanisms[1]the tagger's words
mechanismsmechanisms
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mechanisms[2]the tagger's words
mechanismsmechanisms
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mechanisms[3]the tagger's words
limitationsThe framework is deliberately restricted to primate vision and sets aside emotion and self-consciousness.
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what this limits: the scope of the framework: WE HAVE CONCENTRATED ON THE VISUAL SYSTEM OF PRIMATES, LEAVING ON ONE SIDE SOME OF THE MORE DIFFICULT ASPECTS OF CONSCIOUSNESS, SUCH AS EMOTION AND SELF-CONSCIOUSNESS
limitations[0]the tagger's words
limitationsThe authors acknowledge that relevant parts of the brain are omitted from the framework.
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what this limits: the anatomical completeness of the framework: the authors ACKNOWLEDGE SOME RELEVANT ASPECTS OF THE BRAIN THAT HAVE BEEN LEFT OUT
limitations[1]the tagger's words
limitationsThe individual ideas are not new; only their combination is claimed as original.
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what this limits: the originality claim, precisely: MOST OF THE IDEAS WE FAVOR HAVE BEEN SUGGESTED BEFORE, BUT THEIR COMBINATION IS ORIGINAL - the claim is on the combination, not the components
limitations[2]the tagger's words
limitationsThe hard problem is declared unapproachable head-on and replaced with a different, tractable target.
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what this limits: this framework as an account of qualia: the authors state it is fruitless to approach that problem head-on and substitute the search for neural correlates
limitations[3]1.0the tagger's words
limitationsBiological frameworks are said to differ in kind from those in physics, because biology has few rules without exceptions.
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what this limits: this framework as a law-like account: the authors state biological systems do not have rigid laws and that evolution produces mechanisms with exceptions
limitations[4]1.0the tagger's words
transfersThe structure of a democratic election — primaries, a winning party that stays in power and shapes later events, and opinion polls — is imported as an explicit working model of how transient neuronal coalitions compete and how one comes to dominate and constitute the conscious percept.
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transfers[0]the tagger's words
conceptsframework
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also in: framework
concepts[0]the paper's words
conceptsqualia
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also in: qualia
concepts[1]the paper's words
conceptsNCC
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also in: NCC
concepts[2]the paper's words
sensesframework - explicitly NOT a hypothesis or set of hypotheses, but a suggested point of view for attacking a problem, which may suggest testable hypotheses
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senses[0]1.0the tagger's words
sensesneural correlate of consciousness - the minimal set of neuronal events giving rise to one specific aspect of a conscious percept
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senses[1]1.0the tagger's words
sensesprivate - a stipulated sense: accessible exclusively to the owner of the brain, so the percept itself cannot be conveyed even though information about it can
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senses[2]1.0the tagger's words
claim_relationsbuilds-on → Hebb's cell-assembly idea
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claim_relations[0]the tagger's words
claim_relationsextends → Crick & Koch's own 1990 paper, 1995 proposal and 1998 review
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claim_relations[1]the tagger's words
claim_relationscontradicts → the authors' own earlier claim (1990 paper, ref. 11) that synchronized 40 Hz firing is sufficient for the NCC
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claim_relations[2]the tagger's words
concept_edgesEVIDENCE CORRECTED (RE-GROUNDED) · qualia —contrasted-with→ NCC
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EVIDENCE CORRECTED: RE-GROUNDED. The old span was about the difficulty of explaining redness. This sentence names both and states the programme's own substitution - '…correlate(s) of consciousness (NCC), in the hope that when…'. — strength of the relation: 1 Audit 2026-09-28: DOUBTFUL - read against its span and kept, but the span sets the search for NCC against explaining qualia directly; contrasted-with is loose.
also in: qualia · NCC
concept_edges[0]the tagger's words
content_tagsThe framework's central claim is that the coalition of mutually supporting neurons that wins the ongoing competition at a given moment is what the subject is conscious of.
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content_tags.findings[0]the tagger's words
content_tagsThe authors retract their earlier position that synchronized firing, in particular 40 Hz oscillations, is sufficient for the NCC.
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content_tags.findings[1]the tagger's words
content_tagsAn explicit representation of a feature is necessary for that feature to become conscious but is not on its own sufficient to produce the NCC.
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content_tags.findings[2]the tagger's words
content_tagsConsciousness of a visual scene is claimed to begin at the top of the hierarchy with the gist of the scene, with the details filled in afterwards as activity descends to lower levels.
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content_tags.findings[3]the tagger's words
content_tagsThe binding of an object's features is simply their membership in one coalition.
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content_tags.findings[4]the tagger's words
content_tagsThe penumbra — the neurons influenced by, but not part of, the NCC — is proposed as the substrate of unconscious priming.
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content_tags.findings[5]the tagger's words
content_tagsNo recorded case of purely parietal damage led to a complete loss of conscious vision.
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content_tags.findings[6]the tagger's words
content_tagsThe sensory cortex's job is described as building and using highly specific but multidimensional feature detectors, for properties such as orientation, motion and faces.
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content_tags.findings[7]the tagger's words
content_tagsNCC
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also in: NCC
content_tags.definitions[0]the tagger's words
content_tagsframework
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also in: framework
content_tags.definitions[1]the tagger's words
content_tagsprivate
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also in: private
content_tags.definitions[2]the tagger's words
content_tagsprojective field
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content_tags.definitions[3]the tagger's words
content_tagsexplicit representation
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content_tags.definitions[4]the tagger's words
content_tagsessential node
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content_tags.definitions[5]the tagger's words
content_tagszombie modes
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also in: zombie modes
content_tags.definitions[6]the tagger's words
content_tagsnet-wave
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also in: net-wave
content_tags.definitions[7]the tagger's words
content_tagscoalitions of neurons
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content_tags.definitions[8]the tagger's words
content_tagssnapshots
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also in: snapshots
content_tags.definitions[9]the tagger's words
content_tagsbinding
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also in: binding
content_tags.definitions[10]the tagger's words
content_tagspenumbra
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also in: penumbra
content_tags.definitions[11]the tagger's words
content_tags40 Hz — the synchronized-firing frequency the authors previously proposed, and now reject, as sufficient for the NCC
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content_tags.quantities[0]the tagger's words
content_tagsten — number of headings under which the framework's ingredients are set out
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content_tags.quantities[1]the tagger's words

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