Knowledge Tree
Orchestrated Objective Reduction
Also known as: Orch OR, Orch-OR
Facts (10)
Sources
Quantum Mechanics And Consciousness: The Physics Of Mind quantumzeitgeist.com Apr 17, 2025 5 facts
claimThe Orchestrated Objective Reduction (Orch-OR) model, proposed by Roger Penrose and Stuart Hameroff, posits that quantum processes within the brain could provide a physical basis for subjective experience.
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.
claimExperimental attempts to test the Orch-OR hypothesis by examining microtubule behavior under controlled conditions have yielded mixed results, with some studies reporting quantum-like effects and others failing to replicate them.
claimThe Orchestrated Objective Reduction (Orch OR) hypothesis faces scientific skepticism and challenges regarding the maintenance of quantum coherence in the brain's warm, wet environment, a process known as decoherence.
Quantum Theory of Consciousness - Scirp.org. scirp.org 2 facts
referenceStuart Hameroff and Roger Penrose published 'Consciousness in the Universe: A Review of the “Orch OR” Theory' in Physics of Life Reviews in 2014, which reviews their Orchestrated Objective Reduction theory of 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.
Consciousness-Induced Quantum State Reduction - Nova Spivack novaspivack.com Jun 2, 2025 1 fact
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.
Quantum Models of Consciousness from a Quantum Information ... arxiv.org Dec 20, 2024 1 fact
claimStuart Hameroff integrated the concept of orchestrated objective reduction with biological systems by proposing that microtubules, which are large polymers essential to cellular structure and function, could provide a framework for quantum processes within neurons.
Quantum Approaches to Consciousness plato.stanford.edu Nov 30, 2004 1 fact
referenceHameroff, S.R. and Penrose, R. published the paper 'Conscious events as orchestrated spacetime selections' in the Journal of Consciousness Studies in 1996.