"Imagine you and I are in a room with a third person. When I direct my conversation to you and you engage in the conversation with me, we may lose sight of the fact that for a few moments, we are ignoring the third person. But this third person still exists and observes and thinks even when he is not actively engaged in in the conversation. This is my vision of how they two minds generally work. When one side is stimulated, the other still exists and functions.... The two hemispheres [of the brain] relate to each other as two people do. Both listen, talk, and consider. Both have feelings and attitudes towards the other."