B
Bradski
Guest
We know beyond any shadow of doubt whatsoever that different parts of the brain present representations of reality. The process of doing this is by electrical and chemical means and represent what we know as the mind in action.Perhaps as much to the point, if the activity of the brain is purely material, how (and why) does matter construct or grasp purely mental realities?
For thousands of years this question has been asked of materialists, with no satisfactory answer.
You can probe different areas of the brain of a conscious person and they will experience colours, sounds, emotions, shapes and so on. We know that this is the way that the brain works.
We know that if you remove a certain part, colour will disappear from the mental image that a person has of colors. That is, not just the ability to see colours (although the world appears in shades of grey), but to imagine them as well. Ask them to picture a banana and they can only think of it in grey tones.
Likewise remove a certain portion of the somatosensory cortex from right hemisphere and you will lose the ability to recognize that you have a left hand side. It won’t exist as far as you understand it even though it is patently there.
So all these connections with reality are, again, prompted by chemical and electrical stimulations of neurons. That is, physical action on material objects.
If you don’t think this happens and that there is something else at work somewhere, then it is now incumbent on you, and anyone else who thinks like you, to tell me what else is there at work, where it is, and if it is, as you seem to think, non-material, how does it interact with the physical brain.
The ball is in your court.