The science of neuropsychology has confirmed and extended Roger Sperry's work by establishing that many of our specific mental abilities are lateralised, that is, carried out, supported and coordinated predominantly in one hemisphere of our dual brain or the other.
The first is an ancient, primitive reptilian brain,
The second, and next oldest brain is the limbic, or mammalian brain and registers rewards and punishments, is the seat of emotion, and controls the body's autonomic nervous system.
Finally, over the limbic brain lies the neocortex, or "thinking cap.
1. The left and right halves of the neocortex
2. The left and right halves of the limbic system
3. The connectors, which are structures that provide pathways along which the different parts of the brain send signals to one another.
These specialised structures, plus two patterns of brain functioning - situational functioning and iterative function - comprise key aspects of left brain/right brain theory.
One further concept is important to understanding Ned Herrmann's Whole Brain Model, and that is dominance. The evidence of human dominance shows that wherever there are two of anything in the body, one is naturally dominant over the other. Therefore like we are right or left handed, we are also naturally `footed', `eyed'. `kidneyed', etc. We can also be thought of as `brained'. Since dominance can only occur between paired structures, the Herrmann Brain Dominance Model focuses on the Limbic and Cerebral layers of the Triune Brain.
The model is a metaphorical interpretation of how we think and what are our preferred ways of knowing.
|The upper (cerebral) left A||analytical, mathematical, technical and problem solving.|
|The lower (limbic) left B||controlled, conservative, planned, organised and administrative in nature.|
|The lower (limbic) right C||interpersonal, emotional, musical, spiritual and the "talker" modes.|
|Upper (cerebral) right D||imaginative, synthesising, artistic, holistic and conceptual modes.|
More information is available at another Web site.
The Herrmann Brain Dominance Instrument (HBDI) is a questionnaire used for assessment. Contact the Ned Herrmann group for further information.
More details can be found at Ned Herrmann's Web Site.