But as skill levels grew , the right side of the brain became increasingly active and left side activity progressively diminished .
The archers ' brains were hooked up to electrodes and those with low skill levels initially displayed greater amounts of brain activity in the left hemisphere .
As skill levels grew , the right side of the brain became increasingly active and left side activity progressively diminished .
The archers ' brains were hooked up to electrodes and those with low skill levels initially displayed greater amounts of brain activity in the left hemisphere .