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QUESTION-061: In a brain, is conscious access one exclusive broadcast that reaches every specialised processor at once, or can a content be accessed by some consumers and not others?

4 min read

Properties6
StatusDeferred
Version3
Tagsconsciousness, neuroscience, cognition
Lineorganizational-affect
Answered byTHEORY-096 — Perceptual consciousness is global availability: a content becomes conscious when the activity it drives into a core of long-range hub neurons, prefrontal among them, crosses a threshold and ignites it, so that the network amplifies, sustains and broadcasts that one content to the specialised processors; below threshold it leaves a decaying wave and is not experienced
BearingTHEORY-098 — The neural basis of perceptual consciousness does not include the prefrontal machinery of cognitive access: it is recurrent activity in sensory cortex, THEORY-102 — In Vishne, Gerber, Knight and Deouell's intracranial recordings from ten epilepsy patients viewing clearly visible images for up to 1.5 s, the pattern of high-frequency activity across ventral temporal cortex carried image category, and exemplar identity among 60 images, in a time-invariant code for as long as the image stayed on while amplitude fell about 80%; at the sampled prefrontal and parietal sites, category content was a burst about 150 to 600 ms after onset that did not track duration, THEORY-103 — Perceptual consciousness overflows cognitive access: in partial-report tasks more items are experienced than the roughly four that working memory holds, though any one of them can be accessed when cued, THEORY-245 — In a preregistered multimodal test with clearly seen images, prefrontal cortex carried a seen image's category but not its identity, and a face's orientation at most weakly, while posterior cortex carried category, face orientation and the identity of objects, letters and false fonts, though not of faces; no prefrontal site showed the preregistered onset-and-offset response, and one, found in an exploratory analysis, responded at offset earlier than predicted

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The question

CLAIM-003 says “global” overstates the workspace: access is compartmented in brains as in organizations. This question asks the brain half first, since that is where the record holds evidence. Is access all-or-none and the same for every consumer, or can a content reach some systems (sensory recurrence, working memory, report) and not others?

Why the record needs it

CLAIM-003 is Deferred with its line, and its note says the rival account “asserts uniform broadcast rather than measuring it”. An answer would tell the line whether compartmented access is a fact about brains or only about organizations. The organizational half transfers only if an organization’s permission structure plays the role long-range hub connectivity plays. That is the mechanism the claim names, and the brain half is needed before it can be tested.

What the record holds

  • THEORY-096 is the uniform side: ignition is “sudden, coherent, and exclusive” and broadcasts “that one content to the specialised processors”. Limit: it adopts, and does not show, that availability is experience. It concedes V1 neurons “become part of the GNW” in some tasks.
  • THEORY-098 makes access a winner-take-all competition in which a recurrent sensory representation “can lose that competition and stay unaccessed”. Limit: inference to the best explanation.
  • THEORY-103: in partial report, items are “accessible, not accessed”: held, but not in working memory. Limit: second-hand data.
  • THEORY-102: content is sustained in ventral temporal cortex while prefrontal content is “a transient event at onset”. So a content can be held in one system without lasting in the hub. Limit: every image was seen.
  • THEORY-245 (LIT-973, COGITATE): with clearly seen images, prefrontal cortex carried a seen image’s category but not its identity, and its orientation at most weakly, while posterior cortex carried all three. It bears on this question: the hub did not receive every dimension of a conscious content. Limit: LIT-973 was filed as “direct evidence on whether access is one all-or-none broadcast”, and it is not direct. No dimension’s access was measured, and there was no report on identity or orientation.
  • THEORY-296 (LIT-973): no sustained content-specific synchronization between category-selective posterior cortex and early visual cortex. Limit: it tests IIT’s proposed implementation, not access.
  • THEORY-240 (LIT-949): loss of consciousness goes with reduced integration between default-mode gateways of a synergy-defined workspace. Limit: it concerns the state of consciousness, at rest, not access to a content. There is no stimulus, no report and no consumer-by-consumer measurement.

What would answer it

A recording in which one content is available to one consumer and demonstrably absent from another at the same time, in a design that removes differential post-perceptual cognition, so that the absence is not thought about the percept going missing.

Note of 2026-10-18: a third quantity, self-attribution

A27 §7 of the exchange of 2026-10-17 took CLAIM-003 up and added a quantity beside integration and access: “This suggests three separable quantities: integration, accessibility, self-attribution. We should not assume that any one determines the other two.” Its narrower claim: “A coherent organizational state need not be uniformly accessible to its constituent subsystems, and apparent unity in the organization’s reports may exceed the degree of information sharing actually present.”

This question asks the access half for brains. The third quantity is new: a report of unity is a separate thing from both the integration and the access it seems to report, so a measurement of access cannot be read off what a system says about its own unity. CLAIM-355 places the unified owner in that third quantity.

A27’s Experiment B, “Binding by restricted access”, is the organizational design: give subsystems different subsets of the relevant information, let a central policy integrate their outputs “without broadcasting all information to every participant”, and “Determine whether coherent collective action persists when no constituent subsystem holds a complete account of the organization’s situation.” A27 credited the caution that compartmented behaviour does not show several conscious workspaces to THEORY-096; it is CLAIM-003’s. Whether the line reopens is the owner’s decision.

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