What if the way you think about your brain and how and why it functions is just plain wrong? Lisa Feldman Barrett, PhD, a professor of psychology at Northeastern University and author of the book “7 ½ Lessons About the Brain,” discusses myths about the brain and her theory that it evolved not to think but to control our bodies, and that emotions are not something we experience, but things that the brain creates in order to make sense of the signals it receives from the world.