>>2648692Well, I mean you could measure brain activity in a number of ways and for your specific question I think it's already been done before. Often used to attempt to point to one side being more logical or irrational than the other with little to no success. Typically done through PET scans and other brain imaging techniques.
The real question would be what value does that kind of information offer.
Fun fact: Microchips in the hippocampus to substitute a neuron used in memory for maze navigation has been done fairly recently with clear signs of success.