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The quantum-classical complexity of consciousness and orchestrated objective reduction.

Alessandro Sergi, Antonino Messina, Gabriella Martino, Maria Teresa Caccamo, Salvatore Magazù, Giulio Ruffini, Min-Fang Kuo, Michael A Nitsche

Frontiers in Human Neuroscience September 5, 2025 DOI: 10.3389/fnhum.2025.1630906 (opens in new tab)

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AI-extracted from the abstract
Characteristics Theoretical or philosophical paper Peer reviewed
Keywords Microtubules Complexity Consciousness Orch or Quantum-classical dynamics
Key points Argues that the Orch OR model explains discrete time perception, subjective wholeness, spatio-temporal binding, causal free will, anesthesia mechanisms, and the "hard problem" within a systematic framework, and contends it is currently the most comprehensive and bold attempt to frame the hard problem of consciousness and related features.

Abstract

The Complexity of Consciousness and Orch OR Orch OR states that phenomena such as the discrete perception of time unfolding, the subjective wholeness of perception, spatio-temporal binding, causal free will [28], mechanisms of anesthesia, and the so-called "hard problem" are explainable aspects of consciousness. It organizes these phenomena within a systematic framework capable of explaining possible underlying links and offering interpretations of related philosophical issues [29]. We believe that, at present, the Orch OR model represents the most comprehensive and bold attempt to propose a framework for the hard problem of consciousness and other features that are connected to it.

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