I'm not referring to any specific region of the brain.
That's definitely not what I'm saying.
This is a bit flippant I think. Are you reluctant to believe that all of biology is simply nucleic acids floating back and forth? The phrase you're looking for is "emergent property".
I'm not saying that either.
It is what I meant by "to an extent".
Your brain has been adapted to simulate reality. This is actually one of the key differences between the human brain and AI as it stands today. Your brain actually attempts to build a model of reality, and uses that model to forecast the future. This is easiest to see in an example of a falling tree, where the brain tries to figure out where the tree will land, so that it can send signals to your muscles to get out of the way. Lots of animals do this, of course, but the human brain does it more than most animals. Your model of reality includes other people, attempts to predict what they will do, what the environment will do (like observing worsening weather conditions), what a river might do, or where water might flow or hide. Your brain coordinates within itself to even motivate this simulation and to draw from memory and make inferences and projections for the future. The better your brain is at doing this, the more effective it is at survival. The sophistication of this simulation layer is what I'm referring to as consciousness. Your perception of yourself, others, your environment, time, emotion, the future, the past, all of it needs to meld together into a cohesive picture that you use to forecast the future and learn from the past. This simulation layer is where you carry out all analytical thought, and make decisions. The various parts of your brain build and mold it. Consciousness is the name we give to this simulation layer, the perception of having a mind that is controlling your body and projecting the future, when that simulation layer is sophisticated enough to understand the concept of self and others, and that others are their own selves as well.