People do not need to be left as an article on the subject of right brain or left brain, because people left work quite right. For example, driving a car, playing music, playing the sport.
Left-handed people are not necessarily the same article in the brain or left brain, right for left-handed people can work like a right-handed person. For example, the drive to play the sport.
A left-handed person don't like articles in brain left or right brain because left-handed can work as a right-handed, for example. Automobile driving, music, sport