Can thought processes be sensed to happen exactly in the head? It's common knowledge that humans think with their brains. So it's common to associate hard thinking with head and to seemingly "feel" that it's the head which is loaded when one's thinking.

But does this association have any grounds in actual sensing? Can one sense where the thought processes are happening if not taught about this? If we taught some child that he thinks with e.g. stomach (and no one hints him otherwise), would he associate thinking with that location? Or would he somehow suspect that actually it's the head which is thinking, and what he is taught is wrong?
In the 4th century BC, Aristotle wrote that the source of intelligence was the heart (source). Other greeks like Alcmaeon of Croton thought it might be the brain. I think the fact that they were having this discussion means that it's not obvious from our sensations alone that the thoughts are happening in the head.