Your brain is composed of some 100 billion interconnected neurons. Maybe it’s not too much of a leap of faith to accept that this extremely complicated network allows you to function and interact with your environment each and every day. For example, light from your computer monitor is being input, organized, and interpreted to allow you to read these words.
However, there’s more to this picture: you also are understanding these words, which allows you to form your own impressions, biases, and conclusions. You will make a decision based on your personal interests and history whether or not to click on the links below. And, you will consider if you will ever return to this web site.
This example just touches the surface of the extended functions and capabilities of your brain above and beyond the more rudimentary tasks of maintaining your heart beat and breathing cycles. We often attribute these “extra” amazing properties, including your personal awareness of yourself (“I think therefore I am!“), to your consciousness.
But, what is your consciousness? Where is it located in your brain, if anywhere? How does is come to be? Does a separate consciousness even exist outside the context of your brain’s neuron networks?
These very difficult questions have been debated since, well, since man become conscious!
Although it’s not a first for today’s scientists, Johnjoe McFadden is presenting another hypothesis for a physical correlate of consciousness. His idea centers on how electromagnetic fields resulting from synchronous electrical activity between neurons somehow feeds back to the neurons to enhance or alter their communication.
I am currently reviewing McFadden’s paper and will report back once I’ve finished. After my initial skim I did not see any equations, graphs, or illustrative examples of computational or experimental work. This greatly concerns me as to how far McFadden’s “theory” (as he claims) has moved beyond more than just a thought he came up with while singing in the shower.
[Read the paper describing the idea (PDF). Johnjoe McFadden Journal of Consciousness Studies 9, p. 23-50 (2002)]