I was actually puzzled by your comment as it was clear to me we were in agreement from the start. On re-reading my post it occurred to me that it could be taken to mean the opposite of what I think:

"Essentially, if all human experience can be reduced to neuronal activity, then no human experience can possibly refer to anything other than neuronal activity, including the experience of physical objects. "

To me that means there's more to human experience than neuronal activity. That was my point. Sorry about the confusion.