Microtubules, Constraint Organisation, and Conscious Accessibility: Extending a Contributory Constraint Framework of Consciousness

A constraint-based framework for consciousness is extended by examining intracellular neuroscience, particularly microtubules and anesthetic mechanisms, to propose that conscious accessibility emerges from interacting layers of sensory contribution, neural organization, intracellular regulation, and phenomenological constraint rather than from generative models alone. The framework introduces Omnon as a descriptive state-space construct for representing organized variation in phenomenological accessibility without additional ontological commitments. Extraordinary conscious reports are treated as boundary conditions that can refine explanatory assumptions. Provisional predictions are offered to increase empirical vulnerability and distinguish this contributory approach from stronger generative interpretations. The work does not argue for survival, non-local consciousness, quantum consciousness, or disembodied awareness.

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Abstract

This paper extends an earlier constraint-based framework of consciousness (Cantellow, 2026) by examining whether recent developments in intracellular neuroscience—particularly renewed attention toward microtubules and anesthetic mechanisms—may support a reinterpretation of consciousness in terms of contribution, organization, and accessibility rather than exclusive reliance upon generative models. Rather than proposing that microtubules generate consciousness, the paper develops a contributory constraint framework in which conscious accessibility emerges through interacting layers of sensory contribution, neural organization, intracellular regulation, and phenomenological constraint. The paper further develops Omnon as a retained descriptive state-space construct for representing organized variation in phenomenological accessibility without additional ontological commitments and treats extraordinary conscious reports as boundary conditions capable of refining explanatory assumptions rather than establishing metaphysical conclusions. A series of provisional predictions is proposed to increase empirical vulnerability and distinguish contributory approaches from stronger generative interpretations. This work does not argue for survival, non-local consciousness, quantum consciousness, or disembodied awareness. Instead, it asks whether progress in consciousness research may benefit from reconsidering how biological systems contribute to the organization and accessibility of conscious experience. Companion paper:Cantellow, J. (2026). Beyond Causal Closure: Reconciling Emergent Consciousness with Extraordinary Experience through a Constraint-Based Framework. Zenodo. https://doi.org/10.5281/zenodo.19980222