compressive-vasomotion

# compressive-vasomotion The **Compressive Vasomotion Hypothesis (CVH)** (Johnson 2023): the vasomotion reflex — the undulation of VSMCs wrapping every blood vessel — functions as a **compression sweep on nearby neural resonances**, collapsing and merging fragile, ambivalent patterns (the "Bayesian blur") into a more durable, definite state. This is the **+1 / generate** leg of the vasocomputation timescale triad: the fast initial "grab" that *creates* specificity. ## Use When - Modeling the ~25–100 ms taṇhā "fast grabby thing" as a physical compression event - Reframing precision-weighting as two terms: sensory clarity available vs. compression *forcefulness* applied (the KL divergence between them ≈ a number for taṇhā) - Representing the generative collapse step where a superposition of interpretations is jostled into one - Coupling local electromagnetic-field dissonance → vasomotion trigger → resonance collapse ## Core Concepts - **Compression sweep**: motifs of vasomotion, reflexive reactions to uncertainty, and patterns of taṇhā are *equivalent*. The brain pushes "what is" toward stable, satisfactory, controllable — the three marks inverted. - **Bayesian blur**: an ambivalent SOHM superposition that has not yet committed; CVH collapses it (cf. collapsing a probability distribution / pinching a critical network into a definite circuit). - **Trigger**: VSMC contractions are expected to be triggered by *local dissonance in the electromagnetic field* and to act back on neurons via ephaptic coupling, reduced blood flow, and altered local resonance. - **Right amount ≠ zero**: a finite brain *must* compress away patterns or drown in sensory chaos; the cost is metabolic + epistemic. CVH is unskillful only when over-applied. ## GF(3) Balanced Triad ``` compressive-vasomotion (+1) ⊗ vascular-clamp (0) ⊗ latched-hyperprior (−1) = 0 (mod 3) ``` **Skill Trit**: +1 (Play / generate — the sweep *produces* a candidate collapse; cf. match-fires in the PAM RETE). ## Concomitant Skills | Skill | Trit | Interface | |-------|------|-----------| | `vascular-clamp` | 0 | downstream: freezes what the sweep collapsed | | `latched-hyperprior` | −1 | downstream: cements a sustained collapse | | `vasocomputation` | +1 | umbrella / vascular substrate | | `kolmogorov-compression` | +1 | compression progress as a drive (Schmidhuber) | | `fokker-planck-analyzer` | +1 | stationary collapse of a resonance landscape | | `information-geometry` | 0 | precision-weighting / KL of clarity vs. grab | ## Current literature (2024–2026) - **van Veluw et al. (2020), Neuron** — spontaneous ~0.1 Hz vasomotion drives paravascular clearance; amplitude is tunable. - **Hauglund / Nedergaard et al. (2025), Cell** — locus-coeruleus NE infraslow oscillations drive slow vasomotion → glymphatic clearance in NREM; zolpidem suppresses it. - **Kedarasetti & Drew (2024), Neuron** — vasomotion travels as **long-wavelength waves**; resting modulation exceeds evoked. Recasts the "compression sweep" as a literal traveling wave, not a global clock. - **Atasoy et al. (2016), Nat Commun** — connectome harmonics; with Safron's SOHMs gives the "out-of-tune harmonic → contraction" claim a formal substrate. - **Pinotsis & Miller (2023), Prog Neurobiol** — cytoelectric coupling: endogenous fields sculpt activity (grounds the ephaptic loop; VSMC→field causation still unestablished). - **Sharpening**: specify *which* ~0.1 Hz band (myogenic vs LC/NE vs Mayer) drives compression — the 2025 literature warns these are conflated. - **Hook**: vasomotion phase should predict bistable-percept switching; optogenetic VSMC constriction should narrow local neural dynamic range / lower LFP entropy. - **Grounded**: vasomotion exists + glymphatic role + ephaptic fields. **Speculative**: vasomotion as a Bayesian-collapse mechanism. ## References - Johnson, M.E. (2023). *Principles of Vasocomputation, Part I*. opentheory.net (§V, CVH). - Schmidhuber, J. (2008). *Driven by Compression Progress*. arXiv. - Safron, A. (2020). *IWMT*. Frontiers in AI 3. (SOHMs as autoencoders/symmetry detectors.) - Carhart-Harris & Friston (2019). *REBUS and the Anarchic Brain*. Pharmacol. Rev. 71(3).