@OP
Hind lobotomies don't actually do that.
The parietal cortex is where mathematical processing is done, if you're an East Asian. Yes, that's how we know race realism is real. Every other race "word-solves" problems. Mongoloids are the only ones who exclusively use visual strategies, and from youth, hence we know it isn't cultural.
The back of the brain is basically a massive visual processing and imagination center. It's where visual stimuli from the orbits immediately goes.