| Sumario: | Consciousness remains a central enigma at the intersection of science and philosophy. The Orchestrated Objective Reduction (Orch-OR) theory of Penrose and Hameroff locates conscious episodes in gravity-driven quantum state reductions of coherent tubulin states inside neuronal microtubules, while string theory describes matter and force fields as vibrations of one-dimensional strings propagating in a ten- or eleven-dimensional spacetime whose six or seven extra dimensions are compactified. This article proposes that these two seemingly different frameworks may contact one another: the curvature and moduli of compactified dimensions could renormalise the gravitational self-energy that triggers Orch-OR collapses, thereby linking the timing and stability of neural quantum computations to Planck-scale geometry. Although Penrose himself has criticized the "fashion" for extra dimensions, we argue that subjecting Orch-OR to string-inspired perturbations could inspire interesting philosophical conceptions. If hidden dimensions exceed specific length or coupling scales, consciousness-relevant coherence should be either suppressed or enhanced in measurable ways.
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