Ned Herrmann is an educator and consultant, who has spent two decades developing models of brain activity and its relationship to the creative process. Herrmann headed management education at General Electric and founded the Ned Herrmann Group in 1980. Here is his view.
In answering this question, I need to refer to both the left and right hemispheres, as well as the limbic system. The two hemispheres are frequently referred to as left brain/right brain. The left brain/right brain concept of brain specialization was thoroughly researched and documented by the surgeon Joseph Bogen; Robert Ornstein, author of The Psychology of Consciousness; and Roger Sperry, the psychobiologist who conducted landmark "split brain" experiments, that earned him the Nobel Prize in medicine in 1981.

Author: Scientific American