McFadden, author of Quantum Evolution, argues that human consciousness is actually the brain's electromagnetic field interacting with its circuitry.
This idea is simple enough to make good sense. In the other end, would that mean that our consciousness disappear when we encounter very strong magnetic fields ?
"Some have been saying that if computers are powerful enough, they'll become conscious, but it hasn't happened," McFadden said. "It's time they realize there's something missing. You have to design an artificial brain using field effects."
Again, some people thinking that the human/biological way is the only way to achieve the same result.