T

he proper definition of consciousness in a fully developed entity is the focus of the mind's activity. This may be understood by analogy with audio speakers. By adjusting the balance, the apparent source of the sound moves between two speakers.

Let the speakers be increased in number and replaced by activated percepts or 'concepts' (to be further discussed). Consciousness is the focus of all of these in the same manner but in an imaginary space.

The sensation of consciousness is logically congruent with the material of the brain but is not itself that material.

To understand this let a brain be flattened on an extremely large smooth surface with all connections intact so that the individuals brain cells and connections can be enlarged.
Replace every cell with some logically equivalent mechanical device (something somewhat more complicated than mouse traps with strings). Assuming a mechanical voice and ear analog have also been constructed, will it be possible to converse with the machine?
The answer must be yes for if no, at what point in the replacement procedure is consciousness lost? At no time was any substantial change made. The constructive substance is always the same (matter).

Consciousness is the embodiment of the percept 'self' (as the activity of the brain).
Other such embodiments are color, taste. smell. etc.. Clearly, the detection of a certain wavelength of light must appear to the self in some form. Any form whatsoever is possible that is consistent with quantitive material data.

What appears 'red' to one observer may appear altogether different to another but both will call it red having learned to do so by mutual agreement.
Such qualities 'exist' in compliance with the general law of existence which requires form. Therefore, the 'form' of a photon is wavelength while the 'form of the perception of wavelength is color.

The qualities of sensation in any being are constrained in two ways. They must be internally consistent as well as quantitively consistent with others.