Sy Borg wrote: ↑December 10th, 2021, 8:05 pmIt does not make sense to me. Neuronal activity is neuronal activity and and qualia is qualia. They are not the same. Neuronal activity and qualia are closely related, especially in humans. However, they are not the same phenomenon, just as the LEDs of a TV are not the same as the movie.
(To say that all experiences are neural processes is not to say that all neural processes are experiences.)
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"When, using our introspective powers, we turn our attention to our own minds we find nothing that suggests that the mental processes we are monitoring are processes in the brain. Indeed, I think that many would have held, up to quite recently, that introspective evidence shows, perhaps conclusively, that the mind is not the brain. We can call this the Argument from Introspection. The brain may be the immediate cause that sustains the mind in its operations, upholders of this argument often concede, but it is not the mind itself.
I believe that there is a simple observation that explains why the anti-materialist position should seem attractive even while it may be false. Unfortunately, I had not noticed the point when I published my book
A Materialist Theory of the Mind (1968), so I was not able to include it in the book. But I did publish a little article in
Analysis in 1968: 'The Headless Woman Illusion and the Defence of Materialism'. This illusion is brought about by exhibiting a woman (or, of course, a man!) against a totally black background with the head of the woman swathed with the same black material. It is apparently very striking, and could lead unsophisticated persons to think that the woman lacks a head. It is clear what is going on here. The spectators cannot see the head, and as a result make a transition to a strong impression that there was no head to see. An illegitimate operator shift is at work, taking people from
not seeing the head to seeming to see that the woman did not have a head. The shift of the 'not', the operator, occurs because it is, in the circumstances, the natural and
normally effective way to reason. If you can’t see anybody in the room, you may conclude, very reasonably, there is nobody in the room. In general you will be right. In the same way, we emphatically do not perceive introspectively that the mind is material process in our heads, so we have the impression that it is
not material. This seems to nullify the force of the Argument from Introspection, while still explaining the seductiveness of that reasoning."
(Armstrong, D. M.
Sketch for a Systematic Metaphysics. Oxford: Oxford University Press, 2010. pp. 106-7)
"Many opponents think that materialism is phenomenologically implausible. Simple introspection, they are inclined to think, reveals to us that the mind is definitely not something neurophysiological.
It seems though, that even if materialism is true, there is a natural illusion of the human mind that makes it seem introspectively implausible. It is dramatically illustrated by the Headless Woman illusion, which may still occasionally be seen at fairs and such like. (I have not been lucky enough to see it for myself, but have heard two seemingly reliable reports.) A person posed on a stage against a completely black background, but with a black cloth concealing the head, will give a very strong impression of lacking a head. The mind, it seems, moves naturally from the lack of perception of the head to the false perception of the lack of a head. What cannot be perceived seems not to be there. In much ordinary life this transition will take us from truth to truth. If you can't see anybody in the room, then it is very likely that there is nobody there. But in more theoretical contexts we may be led into error. A failure to be aware of the material nature of the mind, which seems to be a true deliverance of introspection, may be expected to generate the impression that the mind is not material
even if the mind is material. I published this as a brief note in
Analysis in 1968. The illusion may also help to explain, at least in part, the stubborn impression of irreducibility presented by the secondary qualities."
(Armstrong, D. M.
A Materialist Theory of the Mind. Rev. ed. London: Routledge, 1993. p. xix)
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