Te recomiendo leer mi última contribución “On the quantum theory of consciousness,” al blog Mapping Ignorance, 17 Jun 2015. El primer párrafo, en inglés, dice: «The Penrose–Hameroff theory of orchestrated objective reduction (Orch OR) claims that quantum computations in the brain account for consciousness. The communication among neurons by the secretion of neurotransmitters is based on synaptic vesicles distributed along their axons. The neuronal cytoskeleton has a key role in the dynamics of these vesicles. In the 1990s, Stuart Hameroff, psychologist at the University of Arizona, Tucson, USA, and Roger Penrose, mathematical physicist at the University of Oxford, Oxford, UK, proposed that microtubules, the smallest units of the cytoskeleton, are channels for the transfer of the integrated quantum information responsible for consciousness.»
Más adelante puedes leer cosas como «If your theoretical ideas are refuted by experiments, don’t worry, be happy, you only have to change your theory in order to escape current evidence. (…) In my opinion, the new version of Orch OR theory, using as qubits the mesoscopic helical pathways of many tubulins in microtubule lattices, is even more unbelievable than the early version. Extraordinary claims require extraordinary evidence. (…) Quantum biology is a hot topic, but its role in light harvesting in photosynthesis, magnetoreception, enzyme catalysis, or even DNA mutations, is far away from that in Orch OR theory. To be a detailed, testable, falsifiable, and reasonably rigorous approach to a theory of consciousness a new and mature version of the theory is needed. In my opinion, Orch OR is not a promising route to the nature of consciousness. Life is born out of “warm, wet & noisy” systems. Consciousness is like the Schrödinger’s cat of neuroscience.»
Mi contribución se basa en el artículo de Stuart R. Hameroff, Roger Penrose, “Consciousness in the universe: A review of the ‘Orch OR’ theory,” Physics of Life Reviews 11: 39-78, 2014, doi: 10.1016/j.plrev.2013.08.002; aunque también cito unos cuantos más.