How Emotions Are Made: The Secret Life of the Brain

Barrett (psychology, Northeastern Univ.) presents a new neuroscientific explanation of why people are more swayed by feelings than by facts. She offers an unintuitive theory that goes against not only the popular understanding but also that of traditional research: emotions don't arise; rather, we construct them on the fly. Furthermore, emotions are neither universal nor located in specific brain regions; they vary by culture and result from dynamic neuronal networks. These networks run nonstop simulations, making predictions and correcting them based on the environment rather than reacting to it. Tracing her own journey from the classical view of emotions, Barrett progressively builds her case, writing in a conversational tone and using down-to-earth metaphors, relegating the heaviest neuroscience to an appendix to keep the book accessible. Still, it is a lot to take in if one has not been exposed to these ideas before.