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cross_type 4.58 — strongly supporting 23 facts
Stuart R. Hameroff is a primary proponent of the Orchestrated Objective Reduction (Orch OR) theory, which posits that consciousness arises from quantum processes within neuronal microtubules {fact:1, fact:4, fact:14}. His extensive research and publications, such as those co-authored with Roger Penrose, focus on establishing a biophysical and quantum foundation for the nature of consciousness {fact:9, fact:22, fact:23}.
Facts (23)
Sources
Quantum Approaches to Consciousness plato.stanford.edu 3 facts
claimRick Grush and Patricia Smith Churchland published a critique titled 'Gaps in Penrose’s toilings' in the Journal of Consciousness Studies in 1995, which was subsequently responded to by Roger Penrose and Stuart Hameroff in the same journal.
claimRoger Penrose and Stuart Hameroff hypothesize that the gravitation-induced collapse of coherent tubulin states corresponds to elementary acts of consciousness.
claimRoger Penrose and Stuart Hameroff developed a scenario claiming that quantum theory is effective for consciousness, specifically arguing that elementary acts of consciousness are non-algorithmic and neurophysiologically realized as gravitation-induced reductions of coherent superposition states in microtubuli.
Panpsychism (Stanford Encyclopedia of Philosophy/Fall 2015 Edition) plato.stanford.edu 2 facts
claimStuart Hameroff and Roger Penrose conjectured that certain systems capable of resisting decoherence are the physical foundation of more complex states of consciousness.
perspectiveStuart Hameroff is willing to entertain a panpsychist interpretation of the work regarding systems that resist decoherence as the physical foundation of consciousness.
Consciousness-Induced Quantum State Reduction - Nova Spivack novaspivack.com 2 facts
referenceStuart Hameroff and Roger Penrose published 'Consciousness in the universe: A review of the Orch OR theory' in Physics of Life Reviews, 11(1), 39–78, in 2014, which reviews the Orchestrated Objective Reduction (Orch OR) theory of consciousness.
claimPenrose (1989) and Hameroff & Penrose (2014) proposed biophysical models linking consciousness to objective collapse mechanisms involving microtubules, though Tegmark (2000) challenged these models regarding biological feasibility and experimental verification.
Quantum Theory of Consciousness - Scirp.org. scirp.org 2 facts
claimRoger Penrose and Stuart Hameroff propose that the self-collapse or 'objective reduction' of quantum superposition states serves as the non-computable source for consciousness.
referenceStuart Hameroff and Roger Penrose proposed the 'Orch OR' (Orchestrated Objective Reduction) model of consciousness in their 1996 paper 'Conscious Events as Orchestrated Space-Time Selections', published in the Journal of Consciousness Studies.
Quantum Models of Consciousness from a Quantum Information ... arxiv.org 2 facts
referenceStuart Hameroff, A. Nip, M. Porter, and J. Tuszynski investigated conduction pathways in microtubules, biological quantum computation, and consciousness in a 2002 study published in Biosystems.
claimStuart Hameroff proposed that quantum coherence in microtubules serves as a neural basis for emergent consciousness in a 1994 article published in the Journal of Consciousness Studies.
Quantum Mechanics And Consciousness: The Physics Of Mind quantumzeitgeist.com 2 facts
claimThe Orchestrated Objective Reduction (Orch-OR) theory, proposed by Roger Penrose and Stuart Hameroff, suggests that consciousness arises from quantum computations occurring in microtubules within neurons.
claimRoger Penrose and Stuart Hameroff proposed the Orchestrated Objective Reduction (Orch OR) hypothesis, which posits that microtubules in brain neurons maintain quantum states that affect consciousness.
Quantum Approaches to Consciousness plato.stanford.edu 2 facts
claimRoger Penrose and Stuart Hameroff have argued that microtubuli are the biological structures where gravitation-induced quantum state reductions related to consciousness might occur.
claimRoger Penrose and Stuart Hameroff argue that elementary acts of consciousness are non-algorithmic (non-computable) and are neurophysiologically realized as gravitation-induced reductions of coherent superposition states in microtubuli.
Quantum Physics and Consciousness Insights | PDF - Scribd scribd.com 1 fact
referenceThe document 'Quantum Physics and Consciousness Insights' discusses several theories regarding consciousness and brain function, specifically David Bohm's implicate order, Henry Stapp's attention and quantum coherence, Roger Penrose's geometry of the universe, and Stuart Hameroff's microtubule quantum effects.
Denis Noble and Stuart Hameroff go head to head - YouTube youtube.com 1 fact
claimDenis Noble and Stuart Hameroff engage in a debate regarding the origins of consciousness and the role consciousness played in evolutionary biology.
Quantum Approaches to Consciousness plato.stanford.edu 1 fact
claimRoger Penrose and Stuart Hameroff propose that conscious acts are non-computable, shifting the focus from mental causation to the non-computability of consciousness.
Consciousness (Stanford Encyclopedia of Philosophy/Fall 2025 ... plato.stanford.edu 1 fact
claimPhysicist Roger Penrose (1989, 1994) and anesthesiologist Stuart Hameroff (1998) proposed a model of consciousness where consciousness arises through quantum effects occurring within microtubules, which are subcellular structures internal to neurons.
Quantum mechanics and the puzzle of human consciousness alleninstitute.org 1 fact
claimRoger Penrose and anesthesiologist Stuart Hameroff hypothesize that microtubules, which are small structures found in neurons and other cells, weave moments of 'proto-consciousness' together to form full consciousness.
Consciousness and Cognitive Sciences journal-psychoanalysis.eu 1 fact
referenceStuart Hameroff, A. Kazniak, and A. Scott published the 'Towards a Science of Consciousness' series (Tucson I, II, III, IV) between 1996 and 1999 through Bradford/MIT Press.
The evolutionary and genetic origins of consciousness in the ... - PMC pmc.ncbi.nlm.nih.gov 1 fact
claimStuart Hameroff suggested in 1998 that consciousness first evolved during the Cambrian period in simple organisms such as worms, urchins, or one-celled suctorians.
Moving Forward on the Problem of Consciousness - David Chalmers consc.net 1 fact
claimDavid Chalmers notes that Stuart Hameroff and Roger Penrose's work clarifies that they view consciousness as fundamental, rather than explaining it wholly in terms of quantum action in microtubules.