Michael Wiest’s 2025 tour-de-force reviews 47 anesthesia papers: every gas that wipes memory targets aromatic rings on tubulin proteins inside neuronal microtubules. Block those rings—consciousness vanishes; spike rates stay normal. This decapitates the “consciousness = synaptic firing” dogma.
Orch-OR (Penrose-Hameroff) predicted exactly this in 1996: 40-Hz gamma synchrony is orchestrated by quantum dipoles in tubulin, collapsing via objective reduction (OR) to spawn “now” moments of experience. Wiest’s data show OR events bind sight, sound, and self into one seamless “I.” Zombies are impossible; epiphenomenalism is dead.
Philosophy departments are scrambling. If gravity sculpts qualia, free will is rescued—OR is non-computable. Meditation apps now tout “tubulin coherence training.” The 2025 Nobel shortlist just grew one name longer.
Source: Neuroscience of Consciousness (Oxford)
Link: https://academic.oup.com/nc/article/2025/1/niaf011/8127081
Leave a Reply