At the heart of Rapaille’s work is a theory based on a three-part concept (or “triune,” as he calls it) of how the brain works. The Cortex is the seat of logic and reason, abstract thought and language; the Limbic is the brain’s emotional center; and the Reptilian is the area controlled by our basic human needs: eating, breathing, reproducing, surviving. All three sides of the brain exert powerful influences. But in Rapaille’s world, “the reptilian always wins.”
