Non conscious biases, in the form of visceral signals, gut feelings, can serve as guides to wise/intelligent behaviour. Our non-conscious implicit system can achieve insight before conscious awareness. These visceral feelings, our biases, are crucial for motivation; without emotional kick, knowledge alone does not motivate behaviour change. The two hemispheres of the brain are actually two mini-brains connected by a bundle of fibers, the corpus collosum. In the 1930s 1950s, cutting the corpus collosum became all the rage, to help people with epileptic seizures and other disorders. Amazingly, these people seemed pretty normal, but clever psychologists (like. Gazzaniga, your textbook author) discovered ways of communicating separately with the now-independent hemispheres. When asked to point to the item that was seen, the left hand (rg) pointed to the image seen by the right hemisphere. (figure 4. 7 in textbook) Our brains; connections are refined and returned with every experience of our lives .