Argument From Incredulity

Interesting that you wrote “how the brain decides” ? 

But yes, I have a persistent incredulity that human senses can function in the absence of a functioning human sensory system. This is partly based on extensive study of the known physical processes involved with that sort of interaction with our environment.

Clearly there are different ways to use the word incredulity. I'm assuming your use of it here is as a synonym for doubt or scepticism? But, as I mentioned above, other synonyms include amazement, wonder, etc.

By the way, and this is again beyond the scope of this particular thread, your response exhibits an exclusive commitment to physicalism. It doesn't matter how extensive your study if you start with an assumption and ignore other possibilities.