Neurology is currently using measuring equipment in which they can actually physically see which area of the brain is accessed when people are thinking and talking. You might like to google those abstracts to see how it was done.

Yes, there has been a lot of 'wrong science.' That is why we have falsifiability - so that wrong science can be eliminated. That's unlike religion where no matter how wrong something is, it remains.

Yes, the research is confirmed in all countries. Conservatives use the amygdala while liberals use grey matter. Conservatives and liberals, in broad terms, are the same. The policies resulting from the general principles might be different, but the rest is the same.

I have lived and worked in 6 countries on three continents, and traveled a lot further.