A quantum approach to visual consciousness

Trends in Cognitive Sciences 5 (11):472-478 (2001)

Abstract
A theoretical approach relying on quantum computation in microtubules within neurons can potentially resolve the enigmatic features of visual consciousness, but raises other questions. For example, how can delicate quantum states, which in the technological realm demand extreme cold and isolation to avoid environmental ‘decoherence’, manage to survive in the warm, wet brain? And if such states could survive within neuronal cell interiors, how could quantum states grow to encompass the whole brain? We present a physiological model for visual consciousness that can accommodate brain-wide quantum computation according to the Penrose–Hameroff ‘Orch OR’ model. In this view, visual consciousness occurs as a series of several-hundred-millisecond epochs, each comprising ‘crescendo sequences’ of quantum computations occurring at ∼40 Hz.
Keywords Consciousness States  Models  Neurons  Physiology  Visual Perception  Psychophysical Measurement
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DOI 10.1016/s1364-6613(00)01774-5
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References found in this work BETA

Consciousness.John R. Searle - 2000 - Intellectica 31:85-110.
Toward a Theory of Visual Consciousness.Semir Zeki & Andreas Bartels - 1999 - Consciousness and Cognition 8 (2):225-59.
Quantum Computation in Brain Microtubules.Stuart R. Hameroff - 2002 - Physical Review E 65 (6):1869--1896.
Feedback Connections and Conscious Vision.Jean Bullier - 2001 - Trends in Cognitive Sciences 5 (9):369-370.

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Citations of this work BETA

Anesthesia: The "Other Side" of Consciousness.Stuart Hameroff - 2001 - Consciousness and Cognition 10 (2):217-229.

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