DMT and Microtubule Coherence Selection: A Testable Model of Informational Throttling in Time Perception

Summary

The framework presented links the effects of the psychedelic DMT on subjective time to microtubule biophysics and spacetime information theory. It suggests that DMT modulates microtubule vibrational coherence, which in turn affects time perception by altering a coherence parameter Q. This leads to characteristic time dilation experienced during DMT states. The model also provides predictions regarding changes in microtubule spectra and behavioral timing distortions related to receptor modulation.

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Abstract

This paper develops a unified framework linking psychedelic neuropharmacology, microtubule biophysics, and spacetime information theory. Building on prior work (Consciousness and the Scalar Clock, Consciousness as Recursive Spacetime Projection, and Consciousness, Information, and Null Constraints), it proposes that N,N-dimethyltryptamine (DMT) alters subjective time by modulating microtubule vibrational coherence through 5-HT2A and sigma-1 receptor pathways. We introduce a coherence parameter Q that scales the informational awareness tensor A(mu nu), which in turn couples to the scalar clock field phi. Increases in Q slow phi, producing the characteristic time dilation and timelessness of the DMT state. The framework integrates biophysical, computational, and field-theoretic levels of explanation: microtubule dynamics (Q) map into informational geometry (A(mu nu)), which propagate upward into recursive projection thresholds (A(n) * rho(n) >= tau) and finally into phenomenological time. We embed this mechanism in a unified informational action that ties consciousness to fundamental spacetime dynamics. The model generates falsifiable predictions across multiple scales: shifts in microtubule spectra under DMT, entropy and traveling-wave changes in EEG/MEG, and behavioral timing distortions correlated with receptor modulation. Beyond psychedelics, the work has implications for the hard problem of consciousness, the arrow of time, and relational ontologies in physics. This revised version expands the connection between DMT and microtubules by explicitly situating the framework within the Orch-OR tradition of Hameroff and Penrose. It clarifies how DMT, via 5-HT2A and sigma-1 receptors, could tune microtubule coherence, integrates this with the scalar-clock model of time, and emphasizes the role of microtubules as a biophysical substrate for consciousness. New language highlights continuity with Orch-OR while specifying DMT modulation as a concrete biochemical mechanism, making the model more descriptive, testable, and grounded in prior microtubule research. This version introduces a more explicit mathematical treatment of microtubule coherence within the scalar-clock framework. New elements include: A modal representation of microtubule oscillatory dynamics using complex amplitudes. Definition of a coherence matrix to capture phase relations across modes. Introduction of awareness as an operator acting on the coherence structure, distinguishing available dynamics from functionally selected structure. A reduced scalar-clock formulation clarifying how selected coherence contributes to effective temporal slowing. These additions refine the biophysical bridge between microtubule coherence QQQ, informational geometry AμνA_{\mu\nu}Aμν, and scalar-clock dynamics ϕ\phiϕ. Core claims and empirical predictions remain unchanged. This version narrows scope from the original "Unified Framework for Time-Consciousness" draft. The gravitational/spacetime coupling is moved to a labeled speculative appendix, outside the paper's falsifiable core. The coherence parameter Q is pinned to a single computable definition, and predictions are reframed to differentiate this model from the entropic-brain/REBUS account. Status tags (Established / Hypothesis / Speculative) mark claims throughout. See in-document revision note for full detail.

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