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Nature 440, 611 (30 March 2006) | doi:10.1038/440611a; Published online 29 March 2006

Concept Quantum mechanics in the brain

Christof Koch1,2 & Klaus Hepp2

  1. Christof Koch is in the Division of Biology and the Division of Engineering and Applied Science, 216-76, California Institute of Technology, Pasadena, California 91125, USA.
  2. Klaus Hepp and Christof Koch are at the Institute of Neuroinformatics, the University of Zürich and ETH, Zürich, Switzerland.

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Does the enormous computing power of neurons mean consciousness can be explained within a purely neurobiological framework, or is there scope for quantum computation in the brain?

The relation between quantum mechanics and higher brain functions, including consciousness, is often discussed, but is far from being understood. Physicists, ignorant of modern neurobiology, are tempted to assume a formal or even dualistic view of the mind–brain problem.

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