Our guest is Dr. Lisa Feldman Barrett, a noted expert on both psychology and neuroscience who's also a University Distinguished Professor at Northeastern University in Boston. She tells us about her new book, "Seven and a Half Lessons About the Brain." As was noted of this book in a starred review in Kirkus: "An excellent education in brain science.... [Feldman Barrett] deftly employs metaphor and anecdote to deliver an insightful overview of her favorite subject.... So short and sweet that most