Aren't we finding out that certain mental disorders correlate with reduced brain sizes in specific regions of the brain (schizophrenia is the one I've heard the most about)? While phrenology might have been bullshit it might not be true that measurement of the brain can't or couldn't someday help diagnose mental disorders. I've never heard Socrates credited with the development of the scientific method, Aristotle usually gets that nod but I suppose that Aristotle wouldn't have come up with his ideas without Socratic training.
Yeah, the issue with phrenology was the idea that you could read skull bumps. But you're right, atrophy of the brain often has some serious consequences, but by no means have we "mapped" the brain to traits. But the future is full of opportunity! As for Socrates, it's more just that the dialectic method is a big contributor to the scientific method. Aristotle definitely developed it far beyond that. Thanks for watching! :)