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Re:A New Spin on the Quantum Brain by DonaldFisk on Wednesday November 02, 2016 @08:22PM (#12860597)
There's a difference between cognition and consciousness. It's generally accepted that cognition is caused by electrochemical processes in the brain, the exact details of which are still to be worked out. However, there's no generally accepted, or even widely accepted, theory of consciousness.

I think that consciousness might be necessary to make quantum measurements, though. So did Eugene Wigner. This suggests to me that consciousness might have something to do with quantum mechanics at a fundamental level. Exactly what the connexion is, I don't know. I don't think it's helpful to point to particular quantum processes (possibly) taking place in the brain and claim they cause consciousness, because that still wouldn't explain how quantum phenomena give rise to consciousness.

Re:A New Spin on the Quantum Brain by Udo on Wednesday November 02, 2016 @11:09PM (#12861346)
That's because consciousness - at least in the way it's being used here - is not a scientific term at all. What people think it might be isn't reason enough to postulate a hugely fantastical cosmological mechanism where so far none has been shown to exist.

I don't really protest against your belief per se, but since you're making claims about reality that are designed to sound scientific when they really aren't, I feel compelled to voice disagreement, unpopular as it might be in this environment.

Re:A New Spin on the Quantum Brain by DonaldFisk on Thursday November 03, 2016 @11:34AM (#12864823)
> That's because consciousness - at least in the way it's being used here - is not a scientific term at all.

It's not scientific because it concerns subjective experience, i.e. qualia, which are not measurable or observable by someone else. All an observer can do is to observe how the subject reacts. We could either leave consciousness to philosophers (who haven't got much further than Plato did), or expand science to include subjective experience.

> What people think it might be isn't reason enough to postulate a hugely fantastical cosmological mechanism where so far none has been shown to exist.

Agreed.

> I don't really protest against your belief per se, but since you're making claims about reality that are designed to sound scientific when they really aren't, I feel compelled to voice disagreement, unpopular as it might be in this environment.

I'm not advocating any "new age" world view here. My position is similar to that of David Chalmers, namely that there is something which remains to be explained. I have no particular views on how.

Re:A New Spin on the Quantum Brain by adrianN on Thursday November 03, 2016 @04:34AM (#12862377)
There is no generally accepted definition of consciousness that is precise enough to begin forming a theory, so it's not surprising that there is no such theory.

As far as I'm concerned, "consciousness" is a bogus term that will disappear once we understand the brain better.

Re:A New Spin on the Quantum Brain by SamBam on Thursday November 03, 2016 @09:16AM (#12863657)
> I think that consciousness might be necessary to make quantum measurements, though.

What is the evidence for this statement, besides the tautological idea that consciousness is necessary to make any measurements, if we consider "measurements" to be a conscious process?