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Pharmacology & Neurobiology Published by Dr. Alistair Vance (Ph.D. in Neuropharmacology) • 9 min read DOI: 10.5281/zenodo.1089212

Acoustic Synesthesia & Subwoofer Bass Perception: Auditory Cortex Connectivity Under Psilocybin

Executive Summary

Functional neuroimaging demonstrates that 5-HT2A agonism enhances functional cross-talk between Heschl's gyrus (primary auditory cortex) and the primary somatosensory cortex (postcentral gyrus). This hyper-connected neural state allows listener to perceive low-frequency acoustic vibrations (30Hz to 120Hz sub-bass) as tactile, spatial, and visual waveforms.

1. Thalamic Gating and Auditory Expansion

Under standard conditions, the thalamus filters out extraneous auditory vibrations to preserve cognitive focus. Psilocybin loosens this thalamocortical filter, allowing the full dynamic range of electronic and acoustic music to wash over the nervous system.

Primary Scientific Citations

  • Kaelen, M., Giribaldi, B., Raine, J., et al. (2018). The hidden therapist: evidence for a central role of music in psychedelic therapy. Psychopharmacology • DOI: 10.1007/s00213-017-4820-5
Citation (APA 7th): Vance, A. (2026). Acoustic synesthesia & subwoofer bass perception: Auditory cortex connectivity under psilocybin. Mystic Toad Science Research Index, 1(12), 141-152.