I do believe most people are aware of the research done into how our brains work and that there is enough proof that our brains are divided into working sections, each connected to different activities.
Each person definitely has either Left or Right Brain activities, some tending to the Left, others to the Right and some a more Even division.
Characteristics of a Right Brain dominant person.
Right Brain Dominant persons are normally the dreamers, the artists, rock musicians, sportsman, actors.
Characteristics of a Left Brain dominant person.
In general the Left side of the brain is thought of as the academic and logical, thinking side, good with numbers, public speaking, writing, classical music.